Organic flash evaporation waste heat recovery power generation cycle system with injectors
A waste heat recovery and circulation system technology, applied in machines/engines, compressors, refrigerators, etc., can solve the problems of high energy consumption and reduce the power generation efficiency of the waste heat recovery power generation system, so as to improve the power generation of the system, increase the speed, reduce the The effect of after pressure
Active Publication Date: 2019-04-16
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 process of depressurizing the high-pressure gas through the restrictor 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, and 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 c...
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The invention relates to an organic flash evaporation waste heat recovery power generation cycle system with injectors. The organic flash evaporation waste heat recovery power generation cycle systemwith the injectors comprises a working medium pump, an evaporator, a first injector, a first flash tank, an expander, a second injector and a condenser which are connected successively in the direction of power generation working medium circulation; each injector comprises an outer tube, a Laval nozzle coaxial with the outer tube and inside the outer tube is arranged at one end of each outer tube,the inlet end of each Laval nozzle constitutes a main entrance of the corresponding injector, a secondary entrance of each injector is formed in the side of each outer tube, the other end of each outer tube constitutes an outlet of the corresponding injector, and each secondary entrance is located at the upstream of the outlet end of each Laval nozzle; an outlet of the evaporator is connected with the main entrance of the first injector, the secondary entrance of the first injector is connected with a gas phase outlet of a second flash tank, a liquid phase outlet of the second flash tank is connected with the main entrance of the second injector, an outlet of the expander is connected with the secondary entrance of the second injector, and a liquid phase outlet of the first flash tank isconnected with an inlet of the second flash tank through a first throttle valve. The organic flash evaporation waste heat recovery power generation cycle system with the injectors has lower exergy loss and higher 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 ejector. 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 organi...
Claims
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Login to View More 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