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High-parameter ORC turbine power generation equipment applied to engine waste heat recovery and ORC device

A technology for power generation equipment and waste heat recovery. It is used in mechanical equipment, steam engine devices, engine components, etc. It can solve the problems of difficult design and manufacturing, large pressure ratio, and low flow rate, and achieve small and compact design structure, high expansion efficiency, and shaft. The effect of short tie length

Active Publication Date: 2020-03-24
上海慕帆动力科技有限公司
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AI Technical Summary

Problems solved by technology

[0010] The present invention provides a high-parameter ORC turbine power generation equipment applied to engine waste heat recovery to solve the technical problem of difficult design and manufacture of turbines that realize thermal power conversion in the prior art due to large pressure ratio and small flow rate

Method used

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  • High-parameter ORC turbine power generation equipment applied to engine waste heat recovery and ORC device
  • High-parameter ORC turbine power generation equipment applied to engine waste heat recovery and ORC device
  • High-parameter ORC turbine power generation equipment applied to engine waste heat recovery and ORC device

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Embodiment

[0037] see Figure 4 , an ORC device, including an ORC working medium circulation system, an engine exhaust system, a power generation system, a boosted air system and an external cooling water system, wherein the power generation system adopts the above-mentioned turbine power generation equipment.

[0038] Using high-temperature waste heat of exhaust gas for direct heating, choosing a suitable working fluid is one of the difficulties of high-parameter ORC. The refrigerants mentioned in existing patents, such as R245fa and R134a, are used at a lower temperature, not exceeding 15°C, otherwise they will decompose and decompose at high temperatures. Hydrogen fluoride HF is highly corrosive, highly volatile, and toxic to humans and the environment. This type of working fluid has a greenhouse effect and has a destructive effect on ozone, and the refrigerant is relatively expensive. In the selection of ORC cycle working fluid, the applicant has considered alcohols after many deriv...

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Abstract

The invention discloses high-parameter ORC turbine power generation equipment applied to engine waste heat recovery, which is characterized in that a rotating shaft of a generator is connected with amain shaft of an expansion machine to convert the work of the expansion machine into electric energy for storage or utilization, the expansion machine comprises an air inlet pipeline, a nozzle group including a plurality of stationary blades, an impeller, a turbine rotor and a shell, the expansion machine adopts a supersonic axial flow impulse type design, the turbine rotor is fixed on the shell through a bearing, a flow channel formed between two adjacent stationary blades in the nozzle group is in a scaling type, a special molded line is formed at the throat, the impeller is fixed on the rotor and rotates to drive the turbine rotor to rotate, air enters the air inlet pipeline, the airflow flows through the scaling type flow channel for acceleration, reaches the sound speed at the throatand is continuously accelerated, the airflow impacts the impeller to rotate and then is exhausted through an exhaust cavity, the impeller rotates to drive the turbine rotor to rotate, and the turbinerotor drives a rotating shaft of the generator to coaxially rotate. The equipment is suitable for a high-parameter ORC ethanol turbine with a large pressure ratio and small flow rate, and the achievable highest expansion efficiency is obtained.

Description

technical field [0001] The invention relates to a diesel engine exhaust gas recovery and reuse system, in particular to a high-parameter ORC turbine power generation equipment and an ORC device applied to engine waste heat recovery. Background technique [0002] With the increasingly severe energy shortage situation, energy conservation and emission reduction has become the theme of the development of the times. For vehicle engines, the energy effectively utilized only accounts for about one-third of the total heat, and most of it is mainly lost in the form of exhaust emissions and heat dissipation. In the study of how to efficiently utilize engine waste heat and other programs, the ORC cycle (Organic Rankine cycle) is favored by researchers for its high cycle utilization efficiency. [0003] Zhejiang Yinlun Machinery Co., Ltd. disclosed a diesel generator waste heat power generation device based on the ORC system in the application number 201410163424.X, including the ORC ...

Claims

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Application Information

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IPC IPC(8): F01D15/10F01D1/04F01D9/04F01D5/06F01K23/10F01K23/06F01K25/10
CPCF01D1/026F01D1/04F01D5/06F01D9/041F01D15/10F01K23/065F01K23/10F01K25/10
Inventor 林钢陈一峰戴军
Owner 上海慕帆动力科技有限公司
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