Vehicle-mounted Rankine cycle waste heat recycling system

A technology of waste heat recovery system and Rankine cycle, which is applied in steam engine devices, internal combustion piston engines, engine components, etc., can solve the problems of inability to meet the effective utilization of low-grade heat sources and waste heat without recycling, and achieve the purpose of improving the efficiency of waste heat recovery and utilization, Satisfy the effect of effective use

Inactive Publication Date: 2020-04-17
WEICHAI POWER CO LTD
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Problems solved by technology

Although the temperature of the low-grade heat source (cylinder liner or cylinder liner water of the engine) using water and other coolants is relatively low, the waste heat of the cylinder liner water of the engine accounts for a large proportion of the total waste heat, and this part of waste heat cannot be recycled and cannot meet the requirements Effective utilization of low-grade heat sources, waste heat recovery and utilization efficiency of engines

Method used

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  • Vehicle-mounted Rankine cycle waste heat recycling system
  • Vehicle-mounted Rankine cycle waste heat recycling system
  • Vehicle-mounted Rankine cycle waste heat recycling system

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Embodiment Construction

[0046] The core of the present invention is to provide a vehicle-mounted Rankine cycle waste heat recovery system to improve the efficiency of engine waste heat recovery and utilization.

[0047] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0048] Please refer to figure 1 , The embodiment of the present invention provides a vehicle-mounted Rankine cycle waste heat recovery system, including a low-grade organic Rankine cycle device and a high-grade organic Rankine cycle device. The low-grade organic Rankine cycle device includes an engine 6, a low-grade expander 7, a low-grade condenser 9, and a low-grade working fluid pump 10. The low-grade organic working fluid of the low-grade organic Rankine cycle device can exchange heat with the engine 6 ;The high-grade organic Rankine cycle de...

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Abstract

The invention discloses a vehicle-mounted Rankine cycle waste heat recycling system. The vehicle-mounted Rankine cycle waste heat recycling system comprises a low-grade organic Rankine cycle device, and a high-grade organic Rankine cycle device. The low-grade organic Rankine cycle device comprises an engine (6), a low-grade expander (7), a low-grade condenser (9) and a low-grade working medium pump (10), low-grade organic working media of the low-grade organic Rankine cycle device can exchange heat with the engine (6), the high-grade organic Rankine cycle device comprises a high-grade evaporator (1), a high-grade expander (2), a high-grade condenser (4) and a high-grade working medium pump (5), and high-grade organic working media of the high-grade organic Rankine cycle device enter the high-grade evaporator (1) to exchange heat with smoke gas exhausted out of the engine (6). According to the vehicle-mounted Rankine cycle waste heat recycling system, the engine waste heat recycling efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of equipment for a vehicle-mounted Rankine cycle waste heat recovery system, in particular to a vehicle-mounted Rankine cycle waste heat recovery system. Background technique [0002] The traditional vehicle-mounted organic Rankine cycle only recycles high-grade flue gas waste heat. Although the temperature of the low-grade heat source (engine cylinder liner or cylinder liner water) using water and other coolants is relatively low, the waste heat of the cylinder liner water of the engine accounts for a large proportion of the total waste heat, and this part of waste heat is not recycled and cannot meet the requirements Effective utilization of low-grade heat sources, recovery and utilization efficiency of engine waste heat. [0003] Therefore, how to improve the waste heat recovery and utilization efficiency of the engine is a technical problem that those skilled in the art need to solve at present. Conte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02G5/04F01K23/10F01K23/06
CPCF02G5/04F01K23/10F01K23/065Y02T10/12
Inventor 李志杰王培伦文志永孔祥花李敏
Owner WEICHAI POWER CO LTD
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