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Organic Rankine two-stage flash evaporation circulating system with liquid-liquid ejector

An injector and organic technology, which is applied in the direction of jet pumps, machines/engines, mechanical equipment, etc., can solve the problem of high power consumption of the working medium pump, and achieve the effect of avoiding the limitation of system performance

Pending Publication Date: 2022-06-07
HEBEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] It can be seen that many disadvantages of the working medium pump, especially the high power consumption level of the working medium pump, have become the key problems restricting the further improvement of the performance of the organic Rankine cycle system.

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  • Organic Rankine two-stage flash evaporation circulating system with liquid-liquid ejector

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Embodiment Construction

[0017] The present invention will be further described below with reference to the embodiments and the accompanying drawings. The specific embodiments are only used to further illustrate the present invention in detail, and do not limit the protection scope of the claims of the present application.

[0018] like figure 1 The shown organic Rankine two-stage flash cycle system with liquid-liquid ejector includes evaporator 1, gas-liquid separator 2, flash tank 3, high-pressure expander 4, low-pressure expander 5, mixer 6, Condenser 7 , liquid-liquid ejector 8 , first generator 9 , second generator 10 .

[0019] The heat source inlet and outlet of the evaporator 1 are connected with the medium and low temperature heat source, the working medium outlet of the evaporator 1 is connected with the working medium inlet of the gas-liquid separator 2; the gas outlet of the gas-liquid separator 2 is connected with the steam inlet of the high-pressure expander 4. , the liquid outlet of t...

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Abstract

The invention provides an organic Rankine two-stage flash evaporation circulation system with a liquid-liquid ejector. The organic Rankine two-stage flash evaporation circulation system comprises an evaporator, a gas-liquid separator, a flash evaporation tank, a high-pressure expansion machine, a low-pressure expansion machine, a first mixer, a condenser, the liquid-liquid ejector, a first power generator and a second power generator. According to the invention, the energy of the liquid working medium of the flash evaporator is effectively utilized, and the limitation of the working medium pump power consumption on the system performance is avoided.

Description

technical field [0001] The invention relates to the technical field of organic Rankine flash cycle power generation, in particular to an organic Rankine two-stage flash cycle system with a liquid-liquid ejector. Background technique [0002] Regarding the utilization of medium and low temperature heat sources, the organic Rankine cycle has become one of the most promising medium and low temperature resource utilization technologies due to its simple structure, safety and reliability, and good thermodynamic performance. However, due to the low energy density and non-concentrated distribution of medium and low temperature resources, the organic Rankine cycle system generally has a small capacity, low efficiency of each component, and serious power consumption of the working fluid pump. In extreme cases, the output of the system expander may even occur. The phenomenon that the power consumption is smaller than that of the working fluid pump. Moreover, in the organic Rankine cy...

Claims

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Application Information

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IPC IPC(8): F01K13/00F04F5/10
CPCF01K13/00F04F5/10
Inventor 李太禄高海洋孔祥飞高翔王静怡
Owner HEBEI UNIV OF TECH
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