A kind of heat recovery device used in orc system for waste heat power generation of engine
A technology for engine waste heat and waste heat recovery, which is applied to engine components, combustion engines, machines/engines, etc., can solve the problem of low energy utilization efficiency of engines, and achieve the effect of avoiding refrigerant decomposition, efficient absorption and utilization
Active Publication Date: 2016-03-02
ZHEJIANG YINLUN MACHINERY
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Problems solved by technology
[0003] The energy utilization efficiency of the engine is relatively low, generally about 40%, and the remaining 60% of the heat is lost in various forms and discharged into the atmosphere
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Embodiment Construction
[0026] Referring to the accompanying drawings, a heat recovery device for an ORC system for engine waste heat power generation according to the present invention includes a first-stage high-temperature waste heat recovery device 12, a second-stage waste heat recovery device 10, and a metal connecting pipe between the two-stage waste heat recovery devices. Road 7 and the bellows 1 with flanges connected to the engine exhaust pipe at both ends.
[0027] Among them, the first-stage high-temperature waste heat recovery device 12 includes a metal thin-walled shell 3, a flat tube 5, and heat-transfer-enhancing fins 13 inside the flat tube, and an intermittent gap between the flat tubes that supports and enhances heat transfer. The jacket water side channel formed by continuous 2-3 stages of turbulent fins 4 and the main board 11 surrounding the flat tube and connecting the flat tubes at both ends, and the jacket water inlet and outlet pipes 14 arranged on the casing 3, 6.
[0028] ...
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The invention discloses a heat recovery unit for engine waste heat generation ORC (organic Rankine cycle) systems, which comprises a first-stage high-temperature waste heat recoverer, a second-stage waste heat recoverer, a metal connecting pipe and flanged corrugated pipes, the metal connecting pipe is between the two stages of waste heat recoverers, and the flanged corrugated pipes are located on both ends and connected with engine tail gas exhaust pipes. By adopting the high-efficiency compact automobile heat exchanger enhanced heat transfer technique and combining with the characteristic of engine tail gas that carbon can be easily deposited to cause blockage, the invention designs the unit with the two stages of engine tail gas heat absorbers, consequently, the heat of high-temperature engine tail gas can be efficiently absorbed and utilized by an engine waste heat generation ORC system, and coolant decomposition which takes place when the heat of high-temperature tail gas is absorbed by coolant as working medium in the ORC system is prevented.
Description
technical field [0001] The patent of the present invention relates to the field of waste heat recovery and utilization, in particular to an engine exhaust waste heat recovery device of an engine waste heat recovery ORC system. Background technique [0002] With the aggravation of energy shortage, it is becoming more and more important to improve the utilization efficiency of energy. Energy saving and emission reduction has become the most important topic at present. The ORC system based on the organic Rankine cycle is a good technology to improve energy utilization efficiency for the utilization of various industrial waste heat or waste heat. [0003] The energy utilization efficiency of the engine is relatively low, generally about 40%, and the remaining 60% of heat is lost in various forms and discharged into the atmosphere. Among the various forms of waste heat of the engine, the proportion of exhaust heat from the engine is the largest. Engine waste heat power generat...
Claims
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IPC IPC(8): F02G5/02F28D7/16F28F1/42
CPCY02T10/12
Inventor 董军启王斌王建长张荣友陈能舜
Owner ZHEJIANG YINLUN MACHINERY