KR101129071B1 - Two-unit gas-turbine locomotive - Google Patents

Abstract

The inventive two-unit gas-turbine locomotive comprises two traction units which are provided with bodies with a framework and a control cabin and powered trucks. A power unit consisting of a gas-turbine engine for rotating traction and auxiliary generators, an air-preparing device for the gas-turbine engine and auxiliary facilities are arranged in one unit. A tank for storing liquefied cryogenic gas fuel for the gas-turbine engine, an auxiliary diesel generator and auxiliary facilities are arranged in the other unit.; The tank for storing the liquefied cryogenic gas fuel is mounted on the framework in the body in such a way that the vertical projection of the center of gravity thereof coincides with the center of gravity of the remaining mass of the unit, wherein, for increasing technical safety, said container and the power unit are separated from the control cabins and the rear walls of the unit by means of insulated sections which are locked during the operation of the gas-turbine engine and contain the auxiliary facilities and the auxiliary diesel generator.

Description

Dual Unit Gas Turbine Locomotives {TWO-UNIT GAS-TURBINE LOCOMOTIVE}

TECHNICAL FIELD The present invention relates to the field of rail transport and, more specifically, to a design structure of a locomotive, in particular a design structure of a gas turbine locomotive.

A unit G1 constituting a gas turbine locomotive consisting of two units for cargo is known. A gas-turbine engine (GTE) is installed in the middle of the body of the unit frame. The axial compressor of the gas turbine engine is configured to suck outside air through a filter and then send this suction outside air to the combustion chamber. The heated liquid heavy oil fuel is supplied to the combustion chamber. When the turbine is rotated by the gas from the combustion chamber, the turbine's rotation is again used to drive the two traction alternators via the gear unit, causing the traction alternator to supply power to the traction motor. The exhaust gas of the gas turbine engine is discharged through an exhaust pipe in which a heater (heat exchanger) for heavy liquid fuel is disposed.

The auxiliary diesel generator set is provided in the above-mentioned well-known unit. This auxiliary diesel generator set is used for starting the gas turbine engine, which serves as an electric drive for the brake compressor, and also for the individual movement of the gas turbine locomotive. After starting the gas turbine engine, the auxiliary diesel generator set is deactivated. Liquid diesel fuel is used to start these gas turbine engines and liquid heavy oil fuel is used for subsequent operation (2005-2005 "Locomotive" magazine No. 4 pages 37-38, "Gas Turbine Traction: History and Gas Turbine Traction (History and Prospects) ".

Known gas turbine locomotives as described above have many problems as described below. In other words,

-The problem of low efficiency,

The use of heavy oil fuels that affect the ecological performance of gas turbine locomotives, and

The need to provide fuel reservoirs for gas turbine engines and auxiliary diesel generator sets inside each unit of a gas turbine locomotive makes the overall configuration more complex and expensive, while it is not possible to install additional reservoirs for liquefied gas. There is a problem.

In addition, there is also known a gas turbine locomotive equipped with a gas turbine engine operating on fuel gas of liquefied natural gas. In this case, a gas tank is installed on the frame of the locomotive, which has a problem that the gas tank occupies about half of the entire length of the frame and is very heavy (1992, US Patent No. 5,129,328 (IPC B61C 5 / 00)).

Known gas turbine locomotives as described above have many problems as described below. In other words,

The problem that the force of the unit is lowered as the liquefied gas tank is placed inside the unit,

The weight of the tank itself is quite heavy and the amount of gas required for combustion is low, and

-The risk of explosion is very high because of the high pressure of the liquefied gas inside the tank.

In addition, known two-unit gas turbine locomotives include a tender for liquid heavy oil fuel in the form of a separate tank flat car.

The frame of each traction unit is supported by two triaxial bogies with pairs of wheels. The bogie is also provided with a traction electric motor (TEM) with an air cooling system and tubes for the supply and exhaust of cooling air.

One of the locomotive units includes a power unit (gas turbine unit), which includes a gas turbine engine with an axial compressor and a device for the treatment of air and noise reduction. The gas turbine engine is connected to a traction alternator and an auxiliary alternator.

The gas turbine engine fuel system includes a fuel pump that supplies fuel from a carousel fuel tank to a gas turbine engine combustion chamber.

The second unit of the locomotive includes a cab and auxiliary equipment. Such auxiliary equipment includes auxiliary diesel generator sets, diesel fuel tanks, lubricants for electric generators and gas turbine engine bearings, cooling systems for diesel engines, traction motors, cooling fans for traction motors, brake compressors, batteries and control equipment. have.

The heavy oil fuel is supplied to the carbohydrate storage tank at a temperature of 93 ° C. In order to maintain this heating temperature of the heavy oil fuel, the wall of the reservoir is equipped with a heat insulator.

Both units as described above are connected to each other using a power cable, a control cable, two hoses for cooling water, a pipe for diesel fuel used to start the gas turbine engine, and a brake hose (2005 locomotive). "Magazine 3, page 41," Gas Turbine Traction: History and Prospect ").

The gas turbine locomotive consisting of two well-known units provided with the above-mentioned carburism has many problems as mentioned later. In other words,

-The fact that there is only one cab,

The use of heated heavy fuel oil, which affects the ecological performance of gas turbine locomotives, and

As the reservoir of heavy liquid fuel is installed inside a separate carousel, there is a problem that the weight and dimensions of the locomotive increase and the efficiency decreases.

In addition, reactive gas turbine locomotives are also known. This reactive gas turbine locomotive is powered by a turbojet gas turbine engine, an engine compressor with an inlet channel (tube) with air intake, a combustion chamber designed for two fuels, and a hot gas supplied from a gas turbine engine. A heat exchanger-gasifier for liquefied gas configured to be heated, a fuel reservoir (tank) configured as a cryogenic (insulation) structure for storing liquefied gas provided at a position inside the body of a locomotive or on the roof of a locomotive, And fuel piping (2005 Russian Patent No. 225105 C1 (B61C 11/06)).

Known locomotives described above have many problems as follows. In other words,

The problem that the force of the unit is lowered as the power unit and fuel reservoir (tank) for the gas turbine engine are arranged inside the gas turbine locomotive,

The risk of explosion because the fuel tank and gas turbine engine are not separated from the cab, and

As a plurality of fuel tanks are arranged at various points either inside the body of the locomotive or on the roof, there is a problem that it is not possible to ensure that a uniform axial load is applied to the wheels of the pair of locomotives.

The technical effect of the present invention is not only to improve the safety and protection level of the locomotive power unit and fuel tank in an emergency situation, but also to improve the efficiency of the gas turbine locomotive through the improvement of economic and ecological performance, the reduction of metal consumption, and the traction characteristics. To increase.

The above technical effects include a main body having a frame and a cab, a bogie with a pair of power driven wheels, a power unit with a gas turbine engine used to rotate a traction alternator and an auxiliary alternator, and a gas turbine. In a dual unit gas turbine locomotive comprising two traction units comprising an air treatment unit for an engine, a reservoir for storing cryogenic liquefied gas fuel, an auxiliary diesel generator set, auxiliary equipment, and fuel piping with interconnection unit connections, The power unit is disposed inside the main body of one towing unit, and the reservoir for storing cryogenic liquefied gas fuel is disposed inside the other towing unit so that a vertical projection located at the center of gravity of the reservoir is located in the rest of the unit. Mounted on a frame inside the body to match the center of gravity of the part And the reservoir and the power unit for storing cryogenic liquefied gas fuel are separated from the rear wall of the individual cab and the unit body by a section in which the auxiliary equipment and the auxiliary diesel generator set are arranged, the section being technically safe It can be achieved on the basis of the fact that it is isolated from the cab and the body rear wall and kept locked during operation for the purpose of improvement.

Moreover, the reservoir for storing cryogenic liquefied gas fuel is formed in the form of a cryogenic tank in which the maximum filling amount is equal to the unit body volume, and the fuel pipe for the locomotive unit stores the cryogenic liquefied gas fuel disposed in one unit. Flexible interconnection units formed of cryogenic piping for transferring cryogenic fuel from a reservoir to a gas turbine engine disposed in another unit, and arranged in an area where the mutual movement between the two units is at a minimum level. Are connected to each other by The internal cavity of the reservoir for storing liquefied gas fuel is connected to the cryogenic fuel piping either directly through a liquefied gas transfer pump or via an intermediate accumulation tank with an insulating wall, the intermediate accumulation tank supplying liquefied gas. It is mounted on the same unit as the pump. In order to prevent ice from freezing in the distributor of the gas turbine engine in winter, a pipe for exhausting air from the cooling cavity of the electrical unit of the power unit of the gas turbine locomotive is connected to the roof mounted air treatment unit of the gas turbine engine. .

1 is a side elevation view schematically showing the overall configuration of a first unit of a gas turbine locomotive.

2 is a side elevation view schematically showing the overall configuration of a second unit of a gas turbine locomotive.

The dual unit gas turbine locomotive comprises two traction units 1, 2 (FIGS. 1 and 2). In the main body 3 of each traction unit, a frame 4 and a cab 5 are arranged on both ends of the gas turbine locomotive. The frame 4 of the units 1, 2 is mounted on a trolley 6, which is provided with a pair of power driven wheels 7 and a traction motor 8.

The main body 3 of the unit 1 comprises a power unit 9 comprising a gas turbine engine (GTE) 10 used to rotate a traction alternator 11 and an auxiliary alternator 12, and A roof mounted air treatment unit 13 for the gas turbine engine 10.

The unit 1 comprises an auxiliary equipment 14 of a gas turbine locomotive, which includes a rectifier 15, a brake compressor set 16, and an air supply fan for supplying air to the electric machine. A central system with 17) is included. For the purpose of improving technical safety, the power unit 9 is separated from the cab 5 and the main body rear wall 18 of the unit 1 via the isolation sections 19, 20. The isolation section is the area that houses the auxiliary equipment 14 and is locked from the cab during operation of the gas turbine engine 10.

The unit 1 is also provided with a battery 21 for supplying power to the electric starting device 22 used for starting the gas turbine engine 10. A pipe 23 for exhausting air from the cooling cavity of the electrical appliance of the power unit 9 of the gas turbine locomotive is connected to the roof mounted air treatment unit 13 of the gas turbine engine 10, so that the gas turbine in winter It is used to prevent freezing of ice in the distributor of the engine 10. Inside the unit 1, a fuel pipe 24 is further provided to the gas turbine engine 10.

The unit 2 comprises a reservoir 25 for storing cryogenic liquefied gas fuel for the gas turbine engine 10 and other auxiliary equipment 26 for the gas turbine locomotive, which includes a diesel fuel tank ( Auxiliary diesel generator set 27 with 28 and fan 29 for supplying air to the traction motor 8 are included.

The reservoir 25 for storing cryogenic liquefied gas fuel is formed in the form of a cryogenic tank with an insulated wall and also has a sealed inner cavity whose maximum filling amount is equal to the volume of the body 3 of the unit 2. do. This reservoir is mounted on the inner frame 4 of the main body 3 of the unit 2 so that the vertical projection located at the center of gravity of the reservoir coincides with the center of gravity of the rest of the unit 2.

For the purpose of improving technical safety, the reservoir 25 for storing cryogenic liquefied gas fuel is separated from the rear wall 30 of the cab 5 and the body 3 of the unit 2 by means of isolation sections 31, 32. It is separated. The isolation section is the area that houses the auxiliary equipment 26 and is locked from the cab during operation of the gas turbine engine 10. Thus, for example, a fan 29 for supplying air to the traction motor 8 is arranged in the section 31 between the reservoir 25 and the cab 5, and the auxiliary diesel generator set 27. Is arranged in the section 32 between the reservoir 25 and the rear wall 30 of the body 3. The internal cavity of the reservoir 25 for storing cryogenic liquefied gas fuel is connected to the fuel piping of the unit 2 either directly by the liquefied gas transfer pump 34 or via an intermediate accumulation tank 35 having an adiabatic wall. 33). Thus, the intermediate accumulation tank is mounted in the same unit as the liquefied gas transfer pump 34.

The fuel piping 24, 33 of the locomotive units 1, 2 is a gas turbine engine 10 located inside the unit 1 from a reservoir 25 for storing liquefied gas fuel disposed inside the unit 2. It is formed in the form of a cryogenic structure for the purpose of transferring the cryogenic fuel to the), and are connected to each other by a flexible interconnection unit connection portion 36 disposed in a region where the two units have a minimum mutual movement with respect to each other.

The gas turbine locomotive described above may be operated as described below.

Liquefied gaseous fuel is filled in the reservoir 25. This liquefied gas fuel is supplied to the unit 1 via a pump 34 or via an intermediate accumulation tank 35 directly from the reservoir 25, through the fuel pipe 33 and the mutual unit connection 36. Subsequently, it is supplied to the gas turbine engine 10 of the power unit 9 via the fuel pipe 24. The gas turbine engine 10 is started by the electric starting device 22 using the battery 21. The traction alternator 11 is rotated by the operation of the gas turbine engine 10, and the traction alternator 11 supplies power to the traction motor 8 and the auxiliary alternator 12 through the rectifier 15. .

By arranging the power unit 9 and the reservoir 25 inside the different traction units 1 and 2 of the gas turbine locomotive in this way, the volume of the reservoir 25 sufficient for long-term operation of the gas turbine locomotive is achieved. You can do it. In addition, according to this arrangement, the isolation sections 19, 20, 31, 32 containing the auxiliary equipment 14, 26 and the auxiliary diesel generator set 27 are operated during the operation of the gas turbine engine 10. It can be kept locked from the (9) and the reservoir 25, it is possible to improve the technical safety of the gas turbine locomotive. Moreover, the reservoir 25 is mounted on the frame 4 inside the body 3 such that the vertical projection located at the center of gravity of the reservoir coincides with the center of gravity of the rest of the unit 2. According to this configuration, it is possible to maintain the approximate center of gravity of the unit 2 even while the liquefied gas fuel is consumed, and to apply a constant axial load to the pair of wheels 7.

The storage tank 25 for liquefied gas fuel is formed in the form of a cryogenic tank with a thermally insulating wall and an enclosed internal cavity, so that cryogenic fuel can be stored without the risk of accessing heat from the environment, and the consumption of metal is reduced to a minimum. .

The flexible mutual unit connection 36 is arranged in an area where the mutual movement of the units 1 and 2 with respect to each other is minimal, which has the effect of improving the reliability of the connection using the connection. In addition, the internal cavity of the reservoir 25 for storing cryogenic liquefied gas fuel may be connected to the liquefied gas transfer pump 34 via the intermediate accumulation tank 35, thereby improving the operational stability of the gas turbine engine 10. .

In addition, in order to prevent ice from freezing in the distributor of the gas turbine engine 10 in the winter, a pipe 23 for exhausting air used for cooling the electrical equipment of the power unit 9 of the gas turbine locomotive is mounted on the roof. It is connected to the air inlet of the type air processing unit 13.

The gas turbine locomotive of the present invention is designed for the movement of heavy freight trains.

Claims (5)

A main body having a frame and a cab, a bogie having a pair of power driven wheels, a power unit having a gas turbine engine used to rotate a traction alternator and an auxiliary alternator, an air handling unit for a gas turbine engine, A dual unit gas turbine locomotive comprising two traction units comprising a reservoir for storing cryogenic liquefied gas fuel for a gas turbine engine, an auxiliary diesel generator set, auxiliary equipment, and fuel piping with interconnecting unit connections. The power unit is arranged inside the main body of one towing unit, and the reservoir for storing cryogenic liquefied gas fuel is arranged inside the other towing unit so that a vertical projection located at the center of gravity of the reservoir is located in the rest of the unit. The reservoir and the power unit for storing cryogenic liquefied gas fuel, which are mounted on a frame inside the body so as to coincide with the center of gravity of the part, are separated by a section in which the auxiliary equipment and the auxiliary diesel generator set are arranged. And separated from the rear wall of the unit body, wherein the section is kept isolated and locked from the cab and the body rear wall during operation for the purpose of improving technical safety. 2. The dual unit gas turbine locomotive of claim 1, wherein the reservoir for storing cryogenic liquefied gas fuel is formed in the form of a cryogenic reservoir having a maximum fill amount of the unit body volume. The fuel pipe of claim 1, wherein the fuel pipe is formed of a cryogenic pipe for transferring cryogenic fuel from a reservoir for storing cryogenic liquefied gas fuel disposed in one unit to a gas turbine engine disposed in another unit. A dual unit gas turbine locomotive, wherein the two units are connected to each other by flexible mutual unit connections disposed in an area where the mutual movement with respect to each other is minimal. The intermediate cavity of claim 1, wherein the internal cavity of the reservoir for storing liquefied gas fuel is connected to the cryogenic fuel piping either directly through a liquefied gas transfer pump or via an intermediate accumulation tank with adiabatic walls. The dual unit gas turbine locomotive is mounted in the same unit as the liquefied gas transfer pump. A pipe for exhausting air from a cooling cavity of an electrical appliance of a power unit of a gas turbine locomotive is connected to the roof mounted air treatment unit according to claim 1, in order to prevent ice freezing in the distributor of the gas turbine engine in winter. Dual unit gas turbine locomotive characterized by the above-mentioned.

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