Combined power generation system based on organic Rankine cycle and absorption type heat pump cycle

An absorption heat pump and Rankine cycle technology, applied in the field of low-grade energy utilization, can solve the problems of low energy recovery rate, low system performance, and poor effect, and achieve the goal of improving energy recovery utilization rate, increasing power output, and reducing investment Effect

Active Publication Date: 2017-08-29
LIAONING TECHNICAL UNIVERSITY
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Problems solved by technology

[0003] In the recovery and utilization of low-grade energy, the organic Rankine cycle is widely used because of its high-pressure and low-boiling characteristics of the working fluid. If the recovery rate and system performance are low, if the conventional single method is used to recover low-grade energy, the effect will be poor

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  • Combined power generation system based on organic Rankine cycle and absorption type heat pump cycle

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] In addition, the descriptions involving "first", "second" and so on in the present invention are only for descriptive purposes, and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features.

[0026] Such as figure 1 , The present inv...

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Abstract

A combined power generation system based on an organic Rankine cycle and an absorption type heat pump cycle comprises a first organic Rankine cycle module, an absorption type heat pump module and a second organic Rankine cycle module; after finishing cycle power generation in the first organic Rankine cycle module, a primary heat source becomes low-temperature hot fluid at a certain temperature; the low-temperature hot fluid enters the absorption type heat pump module, then the grade of the low-temperature hot fluid is increased, and outward refrigeration to a certain degree can be realized while the low-temperature hot fluid becomes a high-temperature secondary heat source; and in the absorption type heat pump module, a siphon tube is used as a main tool for delivering a refrigerant solution, flowing of the solution is realized by height difference, investment on working medium pumps is reduced, and after two-time heat exchange is finished, waste heat enters the second organic Rankine cycle module for power generation, and then can be fully utilized. The problem that energy which is still in an available state at the tail end of the conventional low-grade heat source recycling system is wasted can be solved; the recycling rate of the energy is improved; and power output is increased.

Description

technical field [0001] The invention belongs to the technical field of low-grade energy utilization, in particular to a combined power generation system based on an organic Rankine cycle and an absorption heat pump cycle. Background technique [0002] my country's rapid economic development has brought about energy shortages and serious environmental pollution. On the one hand, in the fields of steel, construction, and transportation, a large amount of energy is emitted in the form of heat, which is difficult to recycle; on the other hand, geothermal energy, solar energy, etc. The level of utilization of natural resources is low and cannot be used rationally. Therefore, nowadays, how to make rational use of energy has become an important way to alleviate my country's energy and environmental problems. [0003] In the recovery and utilization of low-grade energy, the organic Rankine cycle is widely used because of its high-pressure and low-boiling characteristics of the worki...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K25/08F01D15/10F25B30/04
CPCF01D15/10F01K25/08F25B30/04
Inventor 杨新乐任姝李惟慷戴文智秘旭晴
Owner LIAONING TECHNICAL UNIVERSITY
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