Autonomous stirling-plant for the simultaneous production of electricity and heat

 

(57) Abstract:

The invention relates to the field of heat and Stirling engines, is designed as a stand-alone power plants for stationary and mobile objects with the simultaneous production of electricity and heat. Technical result achieved - increased efficiency and reduced weight and size characteristics of the Autonomous unit as a whole. During operation of the engine 1 produces useful energy that is converted into electrical energy by a generator 5, which is located on the same shaft with the engine 1. For cooling the engine 1 in refrigerator 3 is fed water from the cooling system 9 associated with the system of external heat supply 10 through the heat exchanger 9 and the water line 14 through the heat exchanger 16. Water from the main water pipe 12 is partially supplied to the steam generator 6 through the heat exchanger 16, partly in the steam-water pump-heater 7 through the heat exchanger 8. High-pressure steam from the steam generator 6 through line 19 enters the steam-water pump-heater 6, is mixed with water from line 17, form water with high temperature and pressure. Due to this pressure, there is hot water on the magician the steam generator 6 and the heat exchanger-the heat exchanger 8. 1 Il.

The invention relates to the field of heat and Stirling engines, is designed as a stand-alone power plants for stationary and mobile objects with the simultaneous production of electricity and heat.

A device power plant comprising an internal combustion engine (ice) with the shaft of the consumer power through the coupling and the utilization of steam turbine installation with circuit of the working fluid including steam turbine, condenser, feed pump, steam generator, placed in the line of production of high temperature exhaust gases of internal combustion engines (Author's certificate. N 1677360. Bulletin of inventions No. 34 from 15.4.91, p. 141 - 142). However, this device is not intended for production of thermal energy for heating external customers and uses Newcomerstown Converter direct cycle - combustion engine.

A device steam-water pump-heater (EOR) intended for use in various industrial technologies using steam, combining the functions of a heater and pump at the same time. The application of EOR can significantly reduce the consumption of the electric power industry is edburga" /newspaper/, N 5 (11), from 25.05.99 year). However, earlier steam-water pump - heater in cogeneration plants has not been applied.

It is known that the Autonomous energy sources on the basis of Stirling engines offer high efficiency and a reduced concentration of harmful emissions in the exhaust gases (N. Kirillov.G. The use of highly efficient and environmentally friendly cars Stirling in marine energy. /Proceedings of the 2nd int. Conf. Maritime intellectual technologies "Morintech-97"/, Volume No. 5, St. Petersburg. 1997, page 140). However, to improve the efficiency of the Stirling engine you want to use coolant with minimum temperature.

A device of the Stirling engine, comprising a combustion chamber, a heater, a regenerator, refrigerator, piston and drive, Reader., H. Hooper. Stirling Engines. M., Ed. Mir, 1986, page 55).

Known combination unit on the basis of the Stirling engine with generator on the same shaft, lines, fuel supply and heat exchanger for heating a liquid, through which the exhaust gases of the Stirling engine, while the heated fluid is conveyed to the external line (Application EPO N 0457399. Abstract journal "Invention countries moregenerally, and also, it is not intended to generate steam for use in the systems of external heat.

A device cogeneration plants designed for the simultaneous production of electricity and heat, which includes an internal combustion engine with a generator on the same shaft, a supply of fuel, the cooling circuit of the engine, the heating circuit (heating system with heat consumers), a system of heat exchangers which transfer heat engine coolant and high temperature exhaust gas in the heating circuit, and a control Board ("Construction review" //Journal of quality//, SPb., N 5 (32), may-June 1999, pp. 16-17). However, this device does not involve the production of steam and use it to reduce electricity consumption for own needs, and, as a Converter direct cycle used engine with low efficiency, and high concentration of harmful substances in the exhaust gases.

The technical result, which can be obtained by carrying out the invention, is to improve efficiency, by reducing energy consumption for own needs and applying higher baranich characteristics of a stand-alone installation as a whole.

To achieve this, the technical result of the Autonomous Stirling-plant for the simultaneous production of electricity and heat, comprising a Converter direct cycle (engine) generator on the same shaft, line, fuel line, heat exchanger-the heat exchanger high temperature exhaust gases of the engine through which the highway passes the exhaust gases of the engine, the cooling system of the engine, connected through the heat exchanger system with external heat is supplied, as a Converter direct cycle, Stirling engine, heat exchanger-heat exchanger high temperature exhaust gas of the Stirling engine, made in the form of steam generator, steam and water pump-heater, heat exchanger-a heat exchanger low-temperature exhaust gas of the Stirling engine, heat exchanger-cooler, and highway water supply valve, which divides into line with regulating valve, passing through the heat exchanger, the coolant in the steam generator, and a line valve, passing through the heat exchanger-heat exchanger low-temperature exhaust gas of the Stirling engine in steam-water pump-heating is gesturally hot water systems, coming from the steam-water pump-heater, the highway exhaust gas of the Stirling engine sequentially passes first through the steam generator, and then through the heat exchanger - heat exchanger low-temperature exhaust gases.

Introduction to Autonomous Stirling-installation for the simultaneous production of heat and power Stirling engine, as a Converter direct cycle, heat exchanger utilizing high-temperature exhaust gas of the Stirling engine, made in the form of steam generator, steam and water pump-heater, a heat-exchanger low-temperature exhaust gas of the Stirling engine, heat exchanger-cooler, and lines of water, passing, respectively, through the heat exchanger, the coolant in the steam generator and through the heat exchanger-the heat exchanger low temperature gases in the steam-water pump-heater, highways, high-pressure steam, mains hot water system, allows to obtain a new property, such as the ability to use the heat of the cooling system of the Stirling engine to heat external heat consumers and the residual heat of the waste gases is leaseho use to replace a network of pumps and heat exchangers in the system of hot water supply, as part of the water from the mains water is used to reduce the temperature of the coolant for cooling the Stirling engine.

The drawing shows offline Stirling-plant for the simultaneous production of electricity and heat.

Autonomous Stirling-set includes the Stirling engine 1 with the combustion chamber 2 and the cooler 3, the line of exhaust gases 4 generator 5 that are located on the same shaft with the engine 1, the heat exchanger-the heat exchanger high temperature exhaust gas is made in the form of a steam generator 6, the steam-water pump-heater 7, the heat exchanger-heat exchanger low-temperature exhaust gas 8, the cooling system 9 of the engine 1, passing through the cooler 3, and connected through the heat exchanger 10 with external heat supply 11, a water line 12 and valve 13, divided by line 14 and valve 15 and a heat exchanger-cooler 16 through which also passes the cooling system 9 passing in the steam generator 6, and the line 17 and valve 18, through the heat exchanger-heat exchanger low-temperature exhaust gas 8 in the steam-water pump-heater 7, m is Rahl 20 hot water systems. For the coolant in the cooling system 9 of the engine 1 includes a pump 21.

Autonomous Stirling-plant for the simultaneous production of electricity and heat works as follows.

During operation of the engine 1 produces useful energy that is converted into electrical energy by a generator 5, which is located on the same shaft with the engine 1. For cooling the engine 1 in refrigerator 3 is fed with a pump 21, a chilled water cooling system 9. To remove the heat load from the engine 1 and the minimum temperature of the coolant, the cooling system 9 is connected through the heat exchanger 10 with external heat supply 11 and through the heat exchanger 16 with the water line 14. Tap water through the control valve 13, through line 12 into line 14 and 17. Water line water line 14 passes through a heat exchanger-cooler 16, which cools the coolant of the cooling system 9 of the engine 1 to the minimum temperature, is heated and enters the steam generator 6, which evaporates due to heat exchange with the high temperature exhaust gases coming from the combustion chamber 2 through line 4. The water line is a diversified warm low temperature of the exhaust gases, coming from the steam generator 6, and a steam enters the pump - heater 7, which simultaneously from the steam generator 6, line 19 goes high-pressure steam. In the steam and water pump-heater 7, due to the special design and the effect of mixing the two-phase vapor-liquid media pressure, intensive mixing of the steam and water, with the subsequent production of hot water at high temperature (100 degrees Celsius) and pressure. Due to this pressure is the flow of hot water through line 20 to the hot water supply system. To regulate the flow of water is provided by control valves 13, 15, 18.

Sources of information taken into account in the preparation of the application:

1. Author's certificate. N 1677360. Bulletin of inventions No. 34 from 15.4.91, p. 141-142.

2. "Energy Petersburg//newspaper//, N 5 (11), from 25.05.99,

3. Kirillov, N. G. The use of highly efficient and environmentally friendly cars Stirling in marine energy. /Proceedings of the 2nd int. Conf. Maritime intellectual technologies "Morintech-97"/, Volume No. 5, SPb., 1997, page 140.

4. , Reader., H. Hooper. Stirling Engines. M., Ed. Mir, 1986, page 55.

5. The application of EPO N 0457399. Abstract jurispr., N 5 (32), may-June 1999, pp. 16-17 prototype.

Autonomous Stirling-plant for the simultaneous production of electricity and heat, comprising a Converter direct cycle (engine) generator on the same shaft, line, fuel line, heat exchanger-the heat exchanger high temperature exhaust gases of the engine through which the highway passes the exhaust gases of the engine, the cooling system of the engine, connected through the heat exchanger system with external heat supply, characterized in that it is supplied as a Converter direct cycle Stirling engine, heat exchanger-heat exchanger high temperature exhaust gas of the Stirling engine, made in the form of steam generator, steam and water pump-heater, heat exchanger-a heat exchanger low-temperature exhaust gas of the Stirling engine, heat exchanger-cooler, and highway water supply valve, which divides into line with regulating valve, passing through the heat exchanger by the coolant in the steam generator, and a line valve, passing through the heat exchanger-heat exchanger low-temperature exhaust gas of the Stirling engine in provoda-heater, and highway system hot water coming from the steam-water pump-heater, and the highway exhaust gas of the Stirling engine sequentially passes first through the steam generator, and then through the heat exchanger-heat exchanger low-temperature exhaust gases.

 

Same patents:

The invention relates to a device for heat recovery from exhaust gases, in particular internal combustion engines

The invention relates to the field of energy and can be applied in thermal engines for various purposes, including engines for land, air, underwater vehicles, space power and powerful industrial CHP units

The invention relates to engine and can be used for both stationary and mobile installations

Power plant // 2091599
The invention relates to the field of engineering, in particular to designs combined power plants

Diesel engine // 2086797
The invention relates to mechanical engineering, in particular for diesel engines

The invention relates to the field of engineering, namely the engine, in particular to starting systems for internal combustion engines

The invention relates to thermoenergetics machine for receiving mechanical power from solar energy

The invention relates to mechanical engineering, in particular to the field of thermal machines externally heated working on thermodynamic Stirling cycle, i.e. in the ideal case: isotherm-isochore-isotherm-isochore

The invention relates to the field of power engineering and regenerative gas machines running on forward and reverse cycles of Stirling, is intended as a stand-alone power plants for stationary and mobile objects with the simultaneous production of electricity and heat

The invention relates to the field of power engineering and regenerative gas machines running on forward and reverse cycles Stirling intended as a stand-alone power plants for stationary and mobile objects with the simultaneous production of electricity and heat

The invention relates to engine, namely to the heat engine with external heat supply, and can be used in the automotive industry, as well as propulsion devices for marine and river transport

The invention relates to the field of engineering, in particular to external combustion engines, steam boilers and heating systems

The invention relates to thermal installations of this type, which is characterized in restrictive part of the first claim

The invention relates to the field of engineering

The invention relates to rotary positive displacement machine, designed to work on the Stirling cycle, and can be used in the manufacture of refrigerators, heat pumps and engines

FIELD: heat power engineering.

SUBSTANCE: invention can be used as power plant for special application, for instance, for special fortifications, submerged objects and mobile complexes. Heat accumulator is charged by energy supplied from heat source through closed gas circuit. Circulation of gas heat carrier, for instance, helium, in closed circuit is provided by compressor. Heat from heat accumulating substance is conveyed through walls of accumulator to walls of heater of Stirling engine, leading to gradual temperature rise and pressure rise in working circuit of engine and starting of engine. With engine operating, mechanical energy is converted into electric energy by electric generator. Cooler is used for cooling Stirling engine by cooling medium circulating through cooler.

EFFECT: improved reliability of power plant with Stirling engine, reduced cost of plant.

1 dwg

FIELD: heat power engineering.

SUBSTANCE: invention can be used for special purpose objects, such as fortifications, submerged objects and mobile complexes. Heat accumulator is charged by energy supplied through heater to heat-accumulating substance. After charging, at self-contained operation, heat released by heat-accumulating substance is conveyed through walls of heat accumulator to walls of Stirling engine heater which provides starting and operation of Stirling engine. With engine operating, mechanical energy is converted into electric energy by electric generator. Cooler is used for cooling Stirling engine by cooling medium circulating through cooler.

EFFECT: improved reliability, simplified design, reduced mass and dimensional characteristics of power plant.

1 dwg

Up!