RU2259516C1 - Power-refrigerating system "stirling-stirling" for mobile complexes - Google Patents

Abstract

FIELD: low power and gas regenerative machines operating according to the direct and reverse cycle of Stirling.

SUBSTANCE: the power refrigerating "Stirling-stirling" system for mobile complexes comprises a stirling engine with a power generator on one shaft, Stirling refrigerating machine with an electrical drive on one shaft, fuel supply line, line of air supply to the engine combustion chamber with an actuator valve, line of exhausted gases from the engine combustion chamber, total system of engine and refrigerating machine cooling with a pump and a heat exchanger. The line of air supply to the combustion chamber passes through the heat system through the air heat-exchanger heater in the waste gas line. The common system of cold supply includes two closed circuits, having a reverse side with the heat exchange and the pump located on it.

EFFECT: provided highly effective production of electric power and cold on a transport facility, reduced mass characteristics of the power refrigerating system.

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Description

The invention relates to the field of small energy and gas regenerative machines operating on the direct and reverse Stirling cycles, is intended as stand-alone power plants for moving objects while producing electricity and cold.

It is known that Stirling chillers of moderate cold are the most promising sources of cold, characterized by high efficiency and environmental cleanliness of working bodies (Kirillov N.G. XXI century: development trends of the refrigeration industry and Stirling chillers of moderate cold. // Refrigeration business, No. 3, 2002. - p. 4-8).

A device is known for a chiller operating on the reverse Stirling cycle, containing compression and expansion cavities, a crankcase, a regenerator, a load heat exchanger, a refrigerator, a displacer, a working piston with a displacer rod seal, a drive (Russian Patent No. 2079069, Bull. No. 13 of 05/10/97 )

It is known that autonomous energy sources based on Stirling engines provide high efficiency and reduce the concentration of harmful emissions in exhaust gases (Kirillov N.G. Prospects for the development of marine power based on Stirling machines. // Marine Fleet, No. 2, 2002. - p. 30- 33.).

A device of the Stirling engine is known, including a combustion chamber, a heater, a regenerator, a refrigerator, a piston group and a drive (G. Reeder., C. Hooper. Stirling engines. M .: Mir, 1986, p. 55). However, to increase the efficiency The engine must minimize the lowest cycle temperature.

The technical solution of the autonomous power plant "Stirling-Stirling" is known, consisting of a Stirling engine and a Stirling refrigeration machine used as a heat pump (RF Patent No. 2156373, Bull. No. 26 of 09.20.2000). However, this power plant does not allow generating electricity and cold at the same time, and the presence of an intermediate tank with coolant increases the overall dimensions of the power plant.

The technical result that can be obtained by carrying out the invention is the simultaneous highly efficient production of electricity and cold on a vehicle, as well as reducing the overall dimensions of the energy refrigeration system.

To achieve this technical result, the Stirling-Stirling energy-cooling system for mobile complexes, including a Stirling engine with an electric generator on one shaft, a Stirling refrigeration machine with an electric drive on one shaft, a fuel supply line, an air supply line to the engine’s combustion chamber with a control valve passing through the cooling heat exchanger of the engine cooling system and the refrigeration machine, the exhaust gas line from the engine combustion chamber, the general engine cooling system and a refrigeration machine with a pump and a heat exchanger through which the air supply line passes, is equipped with an air heat exchanger-heater in the exhaust gas line through which the air supply line passes, an external cooling system passing through the cooler of the refrigeration machine, the unified cooling system includes two closed circuits having a common side with a heat exchanger and a pump located on it.

The introduction of the Stirling-Stirling energy-cooling system for mobile complexes of the Stirling chiller of moderate cold and a single cooling system, which includes two closed circuits that have a common side with the heat exchanger and pump located on it, allows to obtain a new property, which consists in the simultaneous development electricity and cold when using direct and reverse cycle converters with the highest efficiency (operating according to the Stirling cycle), reducing the overall dimensions IR energoholodilnoy system in general and the parallel supply of coolant in the engine and the chiller cooling system with a single pump.

The drawing shows the energy-cooling system "Stirling-Stirling" for mobile complexes.

The energy-cooling system includes a Stirling engine 1, a moderate cold Stirling machine 2, a fuel supply line 3 to the Stirling engine 1, an air supply line 4, a cooling system 5, which is the same for engine 1 and refrigerating machine 2. Stirling engine 1 includes a refrigerator 6 and the combustion chamber 7. The unified cooling system 5 includes two closed circuits 8 and 9 having a common side with the heat exchanger 10 and pump 11 located on it. The Stirling refrigerator of moderate cold 2 consists of a refrigerator 12 and a cooler 13 through which the external cooling system 14 passes.

The exhaust gas line 15 contains a heat exchanger-air heater 16. The air supply line 4 to the engine 1 passes through a heat exchanger-cooler 8, a heat exchanger-heater 14 and includes a suction device 17 and a control valve 18. An electric generator is located on the same shaft with the Stirling engine 1 19. The chiller 2 has an electric drive 20. To regulate the supply of coolant to the engine 1 and the chiller 2, control valves 21 and 22 are designed.

Energy-cooling system "Stirling-Stirling" for mobile systems works as follows.

During operation, the Stirling engine 1 produces useful energy that is converted into electrical energy using an electric generator 19 located on the same shaft as the engine 1. The Stirling machine 2 is driven through an electric drive 20, produces cold, which is transmitted through a cooler 13 to an external cooling system 14 To cool the Stirling engine 1 and the Stirling refrigeration machine 2, a cooling system 5 is provided, consisting of closed circuits 8 and 9, according to which, taking heat from the working fluid of the engine I 1 in the refrigerator 7 and the refrigeration machine 2 in the refrigerator 12, the coolant enters the cooling heat exchanger 10, where its temperature drops to the ambient level due to heat exchange with air, and with the help of the pump 11 returns to the refrigerators 2 and 12.

The air supplied through line 4 is drawn in from the atmosphere through a suction device 17 and passes through a heat exchanger 10, where it is heated by the coolant of the cooling system 5, then enters the air heat exchanger 16 of the exhaust gas line 15, where it is heated by the heat of exhaust gases of the engine 1, and is supplied to the combustion chamber 6 of the engine 1, while the amount of air supplied is regulated by the valve 18. Fuel is also supplied to the combustion chamber through line 3, the combustion of which produces exhaust gases with high th point. These gases through line 15 enter the heat exchanger 16. Then the exhaust gases are removed into the environment.

The supply of coolant to the engine 1 and the refrigeration machine 2 is regulated using the control valves 21 and 22.

Sources of information

1. Kirillov N.G. XXI century: development trends of the refrigeration industry and Stirling refrigerators of moderate cold. // Refrigeration business, No. 3, 2002. - p. 4-8).

2. Patent of Russia No. 2079069. Bull. No. 13 dated 05/10/97.

3. Kirillov N.G. Prospects for the development of ship energy based on Stirling machines. // Navy, No. 2, 2002. - p. 30-33.).

4. G. Reeder., C. Hooper. Stirling engines. M.: Mir, 1986, p. 55.

5. RF patent No. 2156373, bull. No. 26 dated 09/20/2000 - a prototype.

Claims (1)

The Stirling-Stirling energy-cooling system for mobile complexes, which includes a Stirling engine with an electric generator on one shaft, a Stirling refrigerator with an electric drive on one shaft, a fuel supply line, an air supply line to the engine’s combustion chamber with a control valve passing through the cooling heat exchanger engine and chiller cooling systems, exhaust gas line from the engine combustion chamber, a common engine and chiller cooling system with a pump and heat exchangers com through which the air supply line passes, characterized in that it is equipped with a heat exchanger-air heater in the exhaust gas line, through which the air supply line passes, an external cooling system passing through the cooler of the refrigeration machine, while the single cooling system includes two closed circuit, having a common side with the heat exchanger and pump located on it.