Waste heat power generation system utilizing organic Rankine cycle

Abstract

The invention discloses a waste heat power generation system utilizing organic Rankine cycle, which comprises a waste heat supply device, the waste heat supply device is connected with a high-temperature waste heat recovery system and is meanwhile connected with a heat conducting medium heater, and the heat conducting medium heater is connected with a low-temperature waste heat recovery system; the high-temperature waste heat recovery system comprises a high-temperature steam circulation pipeline, the high-temperature steam circulation pipeline is connected with a steam power generation branch, at least one exhaust steam heat exchanger and a water circulating pump in series in sequence, and the exhaust steam heat exchanger is connected with an exhaust steam organic Rankine circulation loop; and the low-temperature waste heat recovery system comprises a low-temperature circulation pipeline, the low-temperature circulation pipeline is connected with at least one heat taking medium heat exchanger and an organic working medium circulating pump in series in sequence, and the heat taking medium heat exchanger is connected with the exhaust steam organic Rankine circulation loop. The waste heat power generation system in the invention has the benefits that the investment is low, the maintenance and operation cost is low, the reliability is strong, waste heat can be effectively recycled, the effects of greenness and environment protection are realized, and the waste heat power generation system is suitable for large-scale popularization and use.

Description

technical field [0001] The invention relates to the field of power generation systems, in particular to a waste heat power generation system utilizing an organic Rankine cycle. Background technique [0002] With the increasing population and rapid economic development, the problem of energy shortage has gradually become an obstacle to rapid economic development. Therefore, the rational use and conservation of existing resources is the key to ensure the sustainable development of our country's economy in the future. China's energy consumption is increasing day by day, and my country has become the second largest energy consumption country in the world after the United States, among which industrial energy consumption accounts for more than 70% of the total consumption. In 2008, on the eve of the Copenhagen Conference, the Chinese government put forward the goal of energy conservation and emission reduction: by 2020, carbon dioxide emissions per unit of GDP will be reduced by...

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Problems solved by technology

[0010] The purpose of the present invention is to propose a waste heat power generation system using the organic Rankine cycle to solve the problems of high investment cost, insufficient thermal efficiency and waste heat recovery power generation system in the prior art. It can recover medium and low temperature waste heat, which leads to the problem that the recovery and utilization rate of waste heat is not high

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