An organic flash waste heat recovery power generation cycle system with ejector
A technology of waste heat recovery and circulation system, which is applied in the direction of machines/engines, refrigerators, compressors, etc., can solve the problems of reducing the power generation efficiency and high energy consumption of waste heat recovery power generation systems, and achieve lower pressure, increase power generation, and improve The effect of pressure
Active Publication Date: 2021-08-10
HEFEI GENERAL MACHINERY RES INST +1
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Problems solved by technology
However, in the current organic flash waste heat recovery power generation system, the decompression process of high-pressure gas through the throttle is irreversible and consumes a lot of energy, which reduces the power generation efficiency of the waste heat recovery power generation system.
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[0023] Below in conjunction with embodiment technical solution of the present invention is made more specific description:
[0024] Such as image 3 , 5 As shown: the present invention includes a working fluid pump Pump, an evaporator HRU, a first ejector Ejector1, a first flash tank FE1, an expander TB, a second ejector Ejector2 and a condenser CON connected in sequence along the power generation working fluid circulation direction ;
[0025] The injector includes an outer tube A, one end of the outer tube A is equipped with a Laval nozzle B coaxial with the outer tube A and inside the outer tube A, and the inlet end of the Laval nozzle B constitutes the main inlet of the injector C, the side of the outer tube A is provided with a secondary inlet D of the injector, the other end of the outer tube A constitutes the outlet of the injector, and the secondary inlet D is located upstream of the outlet end of the Laval nozzle B;
[0026] The outlet of the evaporator HRU is conne...
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The invention relates to an organic flash waste heat recovery power generation cycle system with an ejector. The invention comprises a working medium pump, an evaporator, a first ejector, a first flash tank, an expander, a second ejector and a condenser which are sequentially connected along the circulation direction of the power generation working medium; the ejector comprises an outer pipe, and one end of the outer pipe is A Laval nozzle coaxial with the outer tube and inside the outer tube is installed. The inlet end of the Laval nozzle constitutes the main inlet of the injector, the side of the outer tube is provided with a secondary inlet of the injector, and the other end of the outer tube constitutes the outlet of the injector. The secondary inlet is located upstream of the outlet end of the Laval nozzle; the outlet of the evaporator is connected to the main inlet of the first ejector, the secondary inlet of the first ejector is connected to the gas phase outlet of the second flash tank, and the liquid phase outlet of the second flash tank is connected to the second The main inlet of the ejector, the outlet of the expander are connected to the secondary inlet of the second ejector, and the liquid phase outlet of the first flash tank is connected to the inlet of the second flash tank through the first throttling valve. The system has lower loss and higher power generation efficiency.
Description
technical field [0001] The invention belongs to the technical field of waste heat recovery power generation, and in particular relates to an organic flash waste heat recovery power generation cycle system with an injector. Background technique [0002] The organic flash waste heat recovery power generation system built by the expander is an effective way of waste heat recovery and reuse. The system can use a variety of heat sources and working fluids as the power source, and is suitable for superheated steam, saturated steam, vapor-liquid two-phase mixture, and also suitable for flue gas, polluted hot water, hot liquid, etc.; and the system is simple and compact in structure, can Realize the effect of energy saving and environmental protection; and the organic flash cycle power generation system has a smaller heat transfer pinch temperature difference and higher heat transfer efficiency than the traditional organic Rankine cycle power generation system. [0003] The organic...
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IPC IPC(8): F01K27/00F01D15/10F25B9/08
CPCF01D15/10F01K27/00F25B9/08
Inventor 赵盼盼黄磊张欢孙云贾磊吴俊峰李光曼贾甲
Owner HEFEI GENERAL MACHINERY RES INST