Autonomous cogeneration power plant

 

(57) Abstract:

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. Technical result achieved - increase the efficiency of the installation as a whole and reducing the overall size of the installation. During operation of the engine 1 produces useful energy that is converted into electrical energy by a generator 4, which is located on the same shaft with the engine 1. For cooling the engine 1 to the cooling jacket 3 is fed water from the external heat consumers 7 and the return line 9. The heated coolant from the cooling jacket 3 is fed into the heat exchanger-the heat exchanger exhaust gas 5, where it is mixed with water supplied from line 9 on the crosspiece 10, with optional heated exhaust gases of the engine 1 is supplied through line 2, to a high temperature. From the heat-exchanger 5 hot water circulation pump 6 is supplied for heating the external user 3 and the heat exchanger 5 through the saddle 10, provided control valves 11 and 12. 1 Il.

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.

It is known that for quick start-up and stable operation of diesel engines, the cooling water temperature must be at least 50oC (Science and life) //Scientific. -popular. log//, M: Pravda, No. 4, 1984, page 56).

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 "the Invention of the world", issue 65, No. 5, 1993, page 13). However, this setting is a complex system of joint cooling of the engine and generator.

A device power plant comprising an internal combustion engine (ice) with the shaft of the consumer power through the connector turbine, condenser, feed pump, steam generator, placed in the trunk of the exhaust gas ice (Ed. mon. 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.

A device cogeneration plants designed for the simultaneous production of electricity and heat, comprising 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 exhaust gases in the heating circuit, and a control Board ("Construction review" //Journal of quality"//, SPb. N 5 (32), may-June 1999, pp. 16 - 17). However, because the cooling circuit of the engine and the heating circuit provided in the form of independent closed loop, it is necessary to enter in the installation of an additional heat exchanger to their relationship and additional circulation pump.

The technical result, which can be obtained by carrying out the invention is retnuh installation features.

To achieve this, the technical result of the Autonomous cogeneration power plant, which includes the inverter direct cycle (for example, internal combustion engine or a Stirling engine with generator on the same shaft, line, 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 single closed loop heat transfer from the engine to the heat consumers that has a line hot water supply to the external consumers of heat passing through the cooling jacket of the engine, the heat exchanger-a heat exchanger in the exhaust gases of the engine, a single circulating pump, and the return line of the cooling water coming from the consumers of heat to the cooling jacket of the engine, and the return line cooling water is connected with the heat exchanger-heat exchanger jumper valve, and after a jumper in front of the engine, on the return line has a second control valve.

Introduction to Autonomous cogeneration plant single closed loop heat transfer from the engine to the external is-exchanger and the pump, and the return line of the cooling water from heat consumers to the engine, with a bridge connecting it with heat exchanger-heat exchanger and regulating valves, allows to obtain a new property, consisting in the possibility of merging loop engine cooling and heating circuits into a single circuit that ensures the integrated use of the residual heat of the waste gases of the engine and the heat of the engine cooling system for a heat supply of external heat consumers, which reduces the number of heat exchangers and use one circulating pump for cooling water in the engine and hot water external heat consumers.

The drawing shows offline cogeneration power plant.

Autonomous cogeneration unit includes Converter direct cycle (for example, internal combustion engine) 1 line of exhaust gases 2 and the cooling jacket 3, the generator 4, located on the same shaft with the engine 1, the heat exchanger-a heat exchanger in the exhaust gases of the engine 5, the circulation pump 6, the external heat consumers 7, and a single closed loop heat transfer from the engine to the outside of the pot is to waste 5, the pump 6, to the consumers of heat 7, and return chilled water 9 coming from consumers heat 7 to the cooling jacket 3 of the engine 1. The return line 9 is connected by a jumper with 10 heat exchanger-a heat exchanger 5, the bridge 10 is the control valve 11. Also, on the return line 9, before the engine 1 is mounted a control valve 12.

Autonomous cogeneration power plant operates as follows.

During operation of the engine 1 produces useful energy that is converted into electrical energy by a generator 4, which is located on the same shaft with the engine 1. For cooling the engine 1 to the cooling jacket 3 is fed water from the external heat consumers 7 and the return line 9 to a temperature of about 60 - 70oC. After the engine 1, the heated coolant from the cooling jacket 3 is fed into the heat exchanger-the heat exchanger exhaust gases 5 of the engine 1, which also bypassing the cooling jacket 3, enters the chilled water by the bridge 10 from the return line 9. The heated water from the cooling jacket 3 and the water received by the crosspiece 10, move and additionally heated exhaust gases of the engine 1 is supplied through line 2 to a high temperature to the heat consumers 7 on the hot water supply 8. After heat consumers 7, the hot water is cooled and is returned via a return line 9 partially in the cooling jacket 3 and partially in the heat exchanger-the heat exchanger 5 through the saddle 10. To regulate the amount of water flowing in the cooling jacket 3 and the heat exchanger 5 through the jumper 10, is provided for control valves 11 and 12.

Sources of information

1. Science and life//).popular. log//. M: True, N 4, 1984, page 56.

2. The application of EPO N 0457399. Abstract journal "the Invention of the world", issue 65, No. 5, 1993, page 13.

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

4. "Construction review" //Journal of quality//, SPb., N 5 (32), may-June 1999, pages 16 - 17 prototype.

Autonomous cogeneration power plant, which includes the inverter direct cycle (for example, internal combustion engine or a Stirling engine with generator on the same shaft, line, 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 it is equipped with a single closed contour plumage is of EPLA, passing through the cooling jacket of the engine, the heat exchanger-a heat exchanger in the exhaust gases of the engine, a single circulating pump and the return line of the cooling water coming from the consumers of heat to the cooling jacket of the engine, and the return line cooling water is connected with the heat exchanger-heat exchanger jumper valve, and after a jumper in front of the engine on the reset line has a second control valve.

 

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