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INVENTION
Russian Federation Patent RU2156372

INDEPENDENT power module "Stirling-Stirling"

Name of the inventor: Kirillov NG .; Avsyukevich DA .; Sir YM .; AN Kirillov
The name of the patentee: Military Space Engineering University. AF Mozhaiskogo
Address for correspondence: 197082, St. Petersburg, ul. Red Cadet, 16, Military Space Engineering University. AF Mozhaisk, NIO, RL-6, NG Kirillov
Starting date of the patent: 1999.05.19

The invention relates to the field of power engineering and gas regenerative machines operating on the forward and reverse Stirling cycle, intended as a stand-alone power plants for stationary and mobile objects, while the production of electricity and heat. The achieved technical result - increasing the efficiency of the installation as a whole and reduce the negative environmental impact on the environment. When the engine 1 produces useful energy converted into electrical energy by means of an electric generator 4. For the cooling of the Stirling engine 1 is provided the cooling system 10. The heat of the coolant system 10 after preheating in heat exchanger 11 used in the Stirling heat pump 6, to reduce the power of the motor 9. Then coolant is cooled to ambient temperature in heat exchanger 12 and enters the cooler 3 through the engine 1, an intermediate tank 13. in the combustion chamber and fuel is supplied through line 23, in which the combustion exhaust gases are formed, which are reset by line 17 enter the first heating heat exchanger 5, and then to heat exchanger 11 where the residual heat given coolant before entering in the heat pump 6. The heated in the heat exchangers 5 and 7 heat the external system coolant on highways 18 and 19 enters the mixing tank 20, where both sides of the coolant mixed, and through line 21, pump 22 is supplied to the external consumer.

DESCRIPTION OF THE INVENTION

The invention relates to the field of power engineering and gas regenerative machines operating on the forward and reverse Stirling cycle, is designed as a self-contained power plants for stationary and mobile objects, while the production of electricity and heat.

Known decentralized heating system with heat pumps operating on a reverse Stirling cycle, characterized by the highest efficiency and environmental friendliness, since as a working body of the heat pump is used ozononerazrushayuschie substance - helium, hydrogen, air, etc. (NG Kirillov, Sir JM et al Decentralized heating system with heat pumps operating on a reverse Stirling cycle / Newsletter:. "Thermal energy technology" /, N 1. St. Petersburg, 1997, pp 38-40.) . However, to reduce the electrical energy supplied to the heat pump drive is desirable to use as low-grade heat source, a working environment with the highest temperature.

A device - a machine that works on the reverse Stirling cycle, comprising a cavity compression and expansion, housing, regenerator, the load heat exchanger, refrigerator, propellant, the working piston with a seal of the displacer rod drive (Russian patent N 2079069, Bulletin N 13 dated 05.10.97. ).

It is known that self-contained power sources on the basis of Stirling engines for high efficiency and reduced concentrations of harmful emissions in the exhaust gas (NG Kirillov use of highly efficient and environmentally friendly Stirling machines in the ship's power. / Proceedings of the 2nd Int. Conf. On Marine Intelligent Technologies "Morintech-97" / Volume 5 N, St. Petersburg., 1997, p. 140).

Known engine Stirling device, which includes a combustion chamber, a heater, a regenerator, a refrigerator, and a drive piston group (G. Reeder, C. Hooper. Stirling engines. Acad., "Mir", 1986, p. 55).

The prior art thermal power plant with the engine and the heat pump, which operates on the forward and reverse Stirling cycle, with the engine and the heat pump is connected via a shaft (US Patent N 4458495. Abstract Journal "The invention of the world", the release of the B-97, N 3, 1985, p. 13). However, the engine and the Stirling heat pump is designed as svobodnoporshnevogo machines, which limits the possibility of installing the performance of electricity and heat.

Known combination plant based on Stirling engine with an electric generator on the same shaft, lines, fuel and heat exchanger for heating the liquid, through which the exhaust gases of the engine Stirling, the heated fluid is transmitted to the external line (EPO Application N 0457399. Abstract Journal "The invention of the world "issue B-65, N 5, 1993, p. 13). However, this unit has a low efficiency of heat, and as it does not use the heat of the engine coolant, which leads to loss of useful low potential energy.

The technical result that can be obtained by the practice of the invention is to improve the efficiency of the entire plant and reducing the negative environmental impact on the environment.

To achieve this technical result autonomous power module "Stirling Stirling" comprising a Stirling engine with an electric generator on one shaft, the fuel supply line and a heat exchanger for heating the liquid external heat consumption system, through which the exhaust gases of the engine of the Stirling external pipe heat system is provided with heat pump operating on the reverse Stirling cycle, the drive of which can be carried by the shaft of the Stirling engine, or by an external electric motor and connected to the engine by the engine cooling system passes through the engine coolers and heat pump comprising a heat exchanger heating the engine coolant located before the heat pump cooling heat exchanger engine coolant located downstream of the heat pump, the intermediate tank and a circulation pump providing movement of engine coolant through the engine refrigerators and heat pumps, and air and supply line to the engine combustion chamber with a control valve, passing through the heat exchanger cooling, and the line resetting the exhaust gases from the combustion chamber of the engine through the heat exchanger preheating with the external system heat includes line heating the coolant flowing through the heat exchanger heating the fluid line heating the coolant passing through the heat exchanger load of the heat pump, which are connected to the mixing capacitance line and a pump for supplying a heated heating medium to the consumer.

Introduction of the auxiliary power module "Stirling Stirling" heat pump Stirling associated with the Stirling engine through the engine cooling system, comprising a heating heat exchanger and cooling coolant through which, respectively, line reset engine exhaust gases and the air supply line, provides a new property consisting in the use of available capacity, but also the use of air for cooling the coolant of the cooling system prior to its being fed to the motor refrigerator, resulting in improved efficiency of the entire installation of the residual heat of exhaust gases of the engine and the engine cooling system of heat to reduce the consumption of the heat pump, with this use of the Stirling engine with low exhaust emissions and Stirling heat pump with ozononerazrushayuschim working body, reduces the level of environmental pollution.

The drawing shows a self-contained power module "Stirling-Stirling".

Independent power module "Stirling Stirling" includes Stirling 1 engine with a combustion chamber 2 and the condenser 3, the generator 4, located on the same shaft as the engine 1, a heat exchanger heating the fluid external system heat 5, the heat pump Stirling 6 load heat exchanger 7, a refrigerator 8 and electromotive 9, cooling system 10 of the engine 1 through the refrigerator 3 and 8 and consisting of a heat exchanger heating the coolant 11, positioned in front of the heat pump 6, the heat exchanger cooling the cooling fluid 12 downstream of the heat pump 6, the intermediate container 13 and pump 14, air supply line 15 passes through heat exchanger 12 into the combustion chamber 2 of the engine 1, a control valve 16, the exhaust gas relief line 17 of the engine 1, passes through the heat exchanger 5 and 11, a system of external heat, consisting of a line of heating an external heat consumption system coolant 18 passing through the heat exchanger 5 and the heating heat carrier line 19 through the load heat exchanger 6. The heat pump 7 Mainline 18 and 19 are connected to the mixing tank 20 from which through line 21 by pump 22, heated heat transfer fluid is supplied to the consumer. The engine 1 is provided with fuel supply line 23.

INDEPENDENT power module "Stirling-Stirling" works as follows

When the engine 1 produces useful energy converted into electrical energy by means of an electric generator 4 located on the same shaft with the engine 1. For cooling of the Stirling engine 1, cooling system 10 is provided by which, taking heat from the body of the engine 1 in the cooler 3, the cooling heating fluid enters the heat exchanger 11 where its temperature is increased by heat exchange with the exhaust gases and is fed into the refrigerator 8 Stirling heat pump 6. due to the external energy supply from the motor 9 (or from the drive motor 1) there is a transfer of heat the coolant of the cooling system external coolant system 10 of heat flowing through the load heat exchanger 7 the heat pump 6 via line 19. Having a considerable portion of its heat the working fluid of the heat pump 6, coolant enters the cooling heat exchanger 12 where it is cooled to ambient temperature by heat exchange with air, and enters the intermediate tank 13, from where a pump 14 is fed back into the refrigerator 3 for cooling the engine 1. The air supplied via line 15 passes through heat exchanger 12 where it is heated by the coolant of the cooling system 10, and supplied to the combustion chamber 2 of the engine 1, the air supply amount controlled by valve 16. in the combustion chamber and fuel is supplied through line 23, the combustion exhaust gases which are formed at high temperatures. These gases are reset by line 17 enter the heating heat exchanger 5, where the heated part of the external heat system coolant entering the heat exchanger 5 via line 18. After the heat exchanger 5 receives the exhaust gases to the heat exchanger 11 where the residual heat given coolant before entering into heat pump 6. Then the exhaust gases are removed to the environment. Heated in the heat exchangers 5 and 7, the external system coolant heat on highways 18 and 19 come into the mixing tank 20, where both sides of the heat carrier are moved through line 21 and pump 22 is supplied to the external consumer.

INFORMATION SOURCES

1. Kirillov NG, Sir JM and others. The decentralized heating system with heat pumps operating on a reverse Stirling cycle. / Newsletter "Thermal energy technology" /. N 1 Saint-Petersburg., 1997, pp. 38-40.

2. Russian Patent N 2079069, Bul. N 13 from 10.05.97 year.

3. Kirillov NG The use of highly efficient and environmentally friendly Stirling machines in the ship's power. / Proceedings of the 2nd Int. Conf. on marine intellectual technologies "Morintech-97" / Volume 5 N, St. Petersburg., 1997, p. 140.

4. Mr. Reeder., Charles Hooper. Stirling Engines. Acad. "The World", 1986, p. 55.

5. US Patent N 4458495. Abstract Journal "The invention of the world", the release of the B-97, N 3, 1985, p. 13.

6. Application EWP N 0457399. Abstract Journal "The invention of the world", the release of the B-65, N 5, 1993, page 13 -. Prototype.

CLAIM

Independent power module "Stirling Stirling" comprising a Stirling engine with an electric generator on one shaft, the fuel supply line and a heat exchanger for heating the liquid external heat consumption system, through which the exhaust gases of the engine of the Stirling external pipe heat system, characterized in that the provided thermal pump operating on the reverse Stirling cycle, the drive of which can be carried by the shaft of the Stirling engine, or by an external electric motor and connected to the engine by the engine cooling system passes through the engine coolers and heat pump comprising a heat exchanger heating the engine coolant, situated in front of heat pump, the cooling coil cooling liquid of the engine downstream of the heat pump, the intermediate tank and a circulation pump providing movement of engine coolant through the engine refrigerators and heat pumps, and air and supply line to the engine combustion chamber with a control valve, passing through the cooling heat exchanger, and a line reset exhaust gases from the engine combustion chamber, passing through the heating heat exchanger, wherein the external heat system includes a heating medium heating pipe passing through the liquid heating heat exchanger, the coolant heating pipe passing through the heat exchanger of the heat pump loads which are connected to the mixing vessel, and a pump line for feeding the heated heat carrier to the consumer.

print version
Publication date 21.03.2007gg

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