Autonomous thermal power plant with a stirling engine

 

(57) Abstract:

The invention relates to a power system and Stirling engines, is designed as a stand-alone power plants for special stationary and mobile objects. Technical result achieved - increasing the efficiency of the Stirling engine by reducing the temperature of the coolant below ambient temperature, the simultaneous production of various types of energy, such as electricity, heat and cold. During operation of the Stirling engine 1 produces useful energy transferred to the consumer power 5 located on the same shaft with the engine 1. For cooling the engine 1 is used, the cooling system 6, which in the evaporator 16 of the refrigerating machine 9 coolant temperature is reduced below the ambient temperature. High temperature exhaust gases from the combustion chamber 3 through line 2 enter the ejector refrigeration machine 9, through which the evaporator 16 is generated cold. The heat from the condenser 13 of the refrigeration machine 9 is transferred to the external heating through line 18. 1 Il.

The invention relates to the field of heat and Stirling engines, ASS="ptx2">

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, SPb., 1997, page 140). However, to improve the efficiency of the Stirling engine you want to use liquid cooled with a minimum temperature.

Well known concept of the ejector refrigerating machine comprising an evaporator, the steam jet pump (ejector), the condenser, the steam generator, a pump, a throttle valve (M Century. Urosev. Refrigeration unit. L.: Ed. LVIVSKA, 1979, page 139).

A device of the immersion heat exchangers, which can be used as batteries for the cold (M Century. Urosev. Refrigeration unit. L.: Ed. LVIVSKA, 1979, page 97).

A device of the Stirling engine, comprising a combustion chamber, a heater, a regenerator, a refrigerator and piston group (G. Reeder, H. Hooper. Stirling Engines. M.: Mir, 1986, page 55). However, the Stirling engine the lower temperat, includes a Stirling engine and heat the car running by the heat of exhaust gases of the engine and generating cold, to reduce the minimum temperature of the cycle of the Stirling engine (Patent RF N 2099564, F 02 G 5/00, bull. N 35 from 20.12.97). However, this setting is not intended for heat generation.

Known combination unit on the basis of the Stirling engine with the consumer power (generator) on the same shaft and cooling system, lines, fuel supply and heat exchanger for heating the 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 "the Invention of the world", issue 65, No. 5, 199, page 13). However, this setting is a complex system of joint cooling of the engine and generator, and also this solution does not provide for the minimum temperature for cooling of the engine.

The technical result, which can be obtained by carrying out the invention is to improve the efficiency of the Stirling engine by reducing the temperature of the coolant below ambient temperature and odnovrennoy this technical result of the Autonomous thermal power plant with a Stirling engine, includes a Stirling engine with consumer power on the same shaft and cooling system, lines, fuel line, heat exchanger-a heat exchanger in the exhaust gases of the engine through which the highway passes the exhaust gases of the engine, a system of external heating with heat consumers, equipped with a steam jet refrigerating machine with a steam generator and superheater used as heat exchangers, waste heat of exhaust gases of the engine, the evaporator, through which the cooling system of the engine, through the condenser of the refrigeration machine highway transfer of heat from the chillers to the consumers of heat, and the engine cooling system comprises a heat exchanger-cooler, which passes through the supply line to the environment.

Introduction to Autonomous thermal power plant with the Stirling engine of the ejector refrigeration machine associated with the engine cooling system through the evaporator, trunk exhaust gases of the engine, passing through the steam generator and superheater refrigerating machines, heat exchanger cooling cooling system associated with the environment, and the possibility of property, consisting in the possibility of using the heat capacity of the exhaust gases for cooling and decreasing the minimum temperature of the cycle of the Stirling engine below the ambient temperature, and heat of exhaust gases to the external heat supply systems.

The drawing shows the Autonomous thermal power plant with a Stirling engine.

Offline combined power plant includes a Stirling engine with 1 line of exhaust gases 2, combustion chamber 3, a refrigerator, 4, consumer power 5 located on the same shaft with the engine 1, and a cooling system 6 consisting of a heat exchanger-cooler 7 and the pump 8, the ejector refrigeration machine 9, which includes a steam generator 10, the superheater 11, the ejector 12, a capacitor 13, a pump 14, a throttle valve 15, the evaporator 16. Through the heat exchanger-cooler 7 highway 17 with the environment, such as atmospheric air. Through the condenser 13 highway 18 with cooled external heat supply systems.

Autonomous thermal power plant with a Stirling engine works as follows.

When working the engine Chatelet 1. For cooling the engine 1 is used, the cooling system 6, in which the coolant is first cooled in a heat exchanger-cooler 7 to the ambient temperature due to heat exchange with the environment, supplied by a line 17, and then in the evaporator 17 to a temperature below the ambient temperature, and with the help of the pump 8 is returned to the refrigerator 4 of the engine 1. High temperature exhaust gases from the combustion chamber 3 through line 2 enter the ejector refrigeration machine 9, passing through the superheater 11 and the steam generator 10, forming steam with high pressure in the refrigeration machine 9. Steam from the superheater 11 enters the ejector 12, resulting from the evaporator 16 are exhausted pair coolant pressure drops in the evaporator 16. After this steam enters the condenser 13 where it is condensed, and the condensate part by a pump 14 is supplied to the steam generator 10, and the other part passing through the throttle valve 15 is supplied to the evaporator 16. Due to low pressure in the evaporator 16 part of the condensate evaporates, and the other part is cooled, allowing you to select the part of the heat from the cooling system 6 of the engine 1. For condensing vapor in the condenser is used th is 1. 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.

2. Urosev M. C. Refrigeration unit. L.: Ed. LVIVSKA, 1979, page 139.

3. Urosev M. C. Refrigeration unit. L.: Ed. DAVISCO, 1979, page 97.

4. , Reader, Including Hooper. Stirling Engines. M.: Mir, 1986, page 55.

5. RF patent N 2099564, F 02 G 5/00, bull. N 35 from 20.12.97.

6. The application of EPO N 0457399. Abstract journal "the Invention of the world", the release of B-65, No. 5, 1993, pp. 13 - a prototype.

Autonomous thermal power plant with a Stirling engine, comprising a Stirling engine with consumer power on the same shaft and cooling system, lines, fuel line, heat exchanger-a heat exchanger in the exhaust gases of the engine through which the highway passes the exhaust gases of the engine, a system of external heat consumer heat, characterized in that provided with the ejector refrigerating machine with a steam generator and superheater used as heat exchangers, waste heat of exhaust gases of the engine, the evaporator, through which about the achi heat from chillers to heat consumers, and the engine cooling system comprises a heat exchanger-cooler, through which the supply line to the environment.

 

Same patents:

The invention relates to the field of power engineering and energy converters, direct cycle (e.g., Stirling engines or internal combustion engines), 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 cryogenic engineering and air conditioning, can be used as a setup for the regeneration air in an airtight room special fortifications, submarines, space stations, etc

The invention relates to the field of cryogenic engineering and air conditioning, can be used as a setup for the regeneration air in an airtight room special fortifications, submarines, space stations, etc

The invention relates to cryogenic equipment, cryogenic gas refrigerating machines operating on the reverse Stirling cycle, as well as receiving and storage of liquefied natural gas

The invention relates to cryogenic equipment, obtaining liquefied natural gas

The invention relates to cryogenics and cryogenic refrigerating machines operating on the reverse Stirling cycle, can be used for temperature control of various objects and long-term storage of food and other materials

The invention relates to the field of cryogenic engineering and cryogenic refrigeration machines running on reverse Stirling cycle, and can be used for temperature control of various objects and long-term food storage

The invention relates to cryogenics and cryogenic refrigerating machines operating on the reverse Stirling cycle

The invention relates to cryogenics and cryogenic refrigerating machines operating on the reverse Stirling cycle, can be used for temperature control special stationary objects, and also for vehicles

The invention relates to the field of cryogenic engineering, cryogenic gas refrigerating machines operating on the Stirling cycle, as well as to the field of production and storage of liquefied gases, such as natural gas

The invention relates to the field of power engineering and energy converters, direct cycle (e.g., Stirling engines or internal combustion engines), 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 a power system, relates to power converters direct cycle (for example, internal combustion engines, Stirling engines) and 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 energy converters, direct cycle (for example, internal combustion engines, Stirling engines), 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 energy converters, direct cycle (for example, internal combustion engines, Stirling engines), 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 energy converters, direct cycle (for example, internal combustion engines, Stirling engines), 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 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

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

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

Up!