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A combined heat and power generation system

Inactive Publication Date: 2010-03-17
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the conventional combined heat and power system, since the heat exchanger for dissipating the exhaust heat of the engine absorbed by the heat medium and the outdoor heat exchanger of the above-mentioned air conditioner are separately and independently provided, there are many parts and complex structures. question

Method used

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  • A combined heat and power generation system
  • A combined heat and power generation system
  • A combined heat and power generation system

Examples

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no. 1 example

[0030] figure 1 It is a configuration diagram showing the flow of refrigerant and heat medium during cooling in the cogeneration system of the first embodiment of the present invention, figure 2 It is a configuration diagram showing the flow of the refrigerant and the heating medium during heating in the cogeneration system of the first embodiment. refer to figure 1 and figure 2 , illustrating the overall structure of the cogeneration system of the first embodiment.

[0031] In the combined heat and power system of this embodiment, the combined heat and power generator and the outdoor unit of the air conditioner are integrated. The combined heat and power generator is used to generate power and dissipate heat generated during power generation. Also, part of the electric power generated by the cogeneration generator can be supplied to the outdoor unit of the air conditioner.

[0032] The cogeneration generator includes a generator 4 , an engine 8 , a heat absorbing part 2...

no. 2 example

[0060] image 3 It is a configuration diagram showing the flow of a heating medium and a cooling medium in a cogeneration generator according to a second embodiment of the present invention.

[0061] according to image 3 , the combined heat and power generator in this embodiment further includes a third heat exchanger 110 . The third heat exchanger 110 can be arranged inside or outside the casing 2 , and in this embodiment is arranged inside the casing 2 . Thereby, it is possible to reduce the overall size of the cogeneration generator and reduce the number of parts.

[0062] The third heat exchanger 110 includes a second heat medium flow path 111 through which the heat medium passing through the heat absorbing part 20 flows, and a hot water flow path through which water that exchanges heat with the heat medium flowing through the second heat medium flow path 111 flows. 112. That is, the temperature of the water passing through the hot water flow channel 112 is raised by ...

no. 3 example

[0082] Figure 4 It is a configuration diagram showing the flow of the heating medium and the cooling medium of the cogeneration generator according to the third embodiment of the present invention.

[0083] according to Figure 4 , the second heat exchanger 90' of this embodiment includes the second refrigerant flow path 91' described above and the water flow path 92' through which water passes. That is, in the first embodiment, the refrigerant exchanges heat with the indoor air, but in this embodiment, the refrigerant flowing in the second refrigerant flow path 91' exchanges heat with the water passing through the water flow path 92'. .

[0084] And as mentioned above, the second heat exchanger 90' constitutes a part of the refrigeration cycle. According to cooling and heating, the refrigerant passing through the second refrigerant passage 91' of the second heat exchanger 90' exchanges heat with the water passing through the water passage 92' to condense and evaporate. A...

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Abstract

The invention provides a combined heat and power generation system, which comprises the following components: an electric generator that generates electric power; an engine that drives the electric generator; a heat absorption part, which absorbs heat from the engine and that in exhaust air that exhausted from the engine while the heating medium flows; a first heat converter which is provided witha first heating medium flow path that makes the heating medium in the heat absorption part flow, and a first coolant flow path that makes the coolant flow; and a compressor that compresses the coolant. The electric generator, the engine, the heat absorption part, the first heat converter and the compressor are set in the housing in an integrated mode. In addition, the combined heat and power generation system also comprises a second heat converter, wherein the second heat converter is set on external part of the housing and is provided with a second coolant flow path that makes the coolant condensated and evaporated from inside of the housing. Thereby, based on the invention, a heat converter can be used to carry out heat exchange between the heating medium and the coolant in the refrigerating cycle with smaller setting area and low component cost.

Description

technical field [0001] The invention relates to a cogeneration system of heat and electricity, in particular to a cogeneration system of heat and electricity in which heat dissipation of heat medium and condensation and evaporation of refrigerant are carried out on a heat exchanger. Background technique [0002] In general, a combined heat and power system refers to equipment that generates electricity using fossil fuels, etc., supplies the generated electricity to power-consuming parts such as lighting, and utilizes heat generated in the process of generating electricity for heat-consuming parts. [0003] In the existing power generation method, energy efficiency is low because part of the energy used in the power generation process is released as exhaust heat. On the contrary, the cogeneration system can improve energy efficiency by using the released exhaust heat as thermal energy. The above-mentioned heat energy can be used for various purposes according to the user's r...

Claims

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Application Information

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IPC IPC(8): F02G5/02F25B27/02F24F1/00F24F3/06F24F1/06
CPCY02T10/166Y02E20/14Y02A30/274Y02P80/15Y02T10/12F02G5/04F24H4/06F24H9/2064F24H2240/00Y02B30/625
Inventor 朴一雄柳弘坤赵殷晙
Owner LG ELECTRONICS INC