Falling-film evaporator and organic Rankine cycle power generating system using same

A technology of falling film evaporator and oil collector, applied in evaporator accessories, evaporator adjustment/control, evaporation, etc., can solve the problems of reducing the expansion power of the expander 2, increasing the internal friction of the power generation system, and increasing the outlet back pressure, etc. Achieve the effects of reducing internal friction, simple structure, and reducing the content of working fluid

Active Publication Date: 2016-06-08
山东科灵节能装备股份有限公司
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Problems solved by technology

The structure of the existing oil return method is complex, and the oil separator 6 is installed at the outlet of the expander 2, which will increase the outlet back pressure of the expander 2 and reduce the expansion power of the expander 2
In addition, it is necessary to add an oil pump 7 to raise the lubricating oil from low pressure to high pressure, which increases the internal friction of the entire power generation system

Method used

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  • Falling-film evaporator and organic Rankine cycle power generating system using same
  • Falling-film evaporator and organic Rankine cycle power generating system using same
  • Falling-film evaporator and organic Rankine cycle power generating system using same

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[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0035] refer to Figure 4 , the falling film evaporator of the present invention includes a cylinder 81, the upper end of the cylinder 81 is provided with a working fluid inlet 82 and a working fluid outlet 83, the cylinder 81 is provided with a distributor and a heat exchange tube, and the bottom of the cylinder 81 is provided with There is an oil return device 89, the oil return device 89 includes a float oil collector 891 that can float in the oil-rich layer at the bottom of the cylinder 81, the float oil collector is connected with an oil collection outlet pipe 892, and the oil collection outle...

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Abstract

A falling-film evaporator and an organic Rankine cycle power generating system using the same. The invention discloses the falling-film evaporator and the organic Rankine cycle power generating system. The falling-film evaporator comprises a tubular body, wherein the tubular body is provided with a working medium inlet and a working medium outlet, a distributor and a heat exchange tube are arranged in the tubular body, an oil return device is arranged at the bottom of the tubular body and comprises a float oil catcher which can float in an oil-rich layer in the bottom of the tubular body, the float oil catcher is connected with a caught oil delivery tube, and the caught oil delivery tube is connected to the exterior of the tubular body. According to the falling-film evaporator and the organic Rankine cycle power generating system, disclosed by the invention, the oil return device is simple in structure and reliable in oil return.

Description

technical field [0001] The invention relates to the technical field of power generation systems, in particular to a falling film evaporator and an organic Rankine cycle power generation system using the falling film evaporator. Background technique [0002] At present, the falling film evaporator has the advantages of excellent heat transfer performance, less working fluid charge, and high heat transfer efficiency, and has been widely used. [0003] There are two main types of existing falling film evaporators, refer to figure 1 , the first type is a hybrid falling film evaporator 1, a layer of distribution plate 12 is set, only part of the tube bundles can be evaporated in falling film type, and the rest of the tube bundles are flooded evaporation, and an oil return port 11 is set at the bottom. The falling film evaporator with this structure cannot fully realize the falling film evaporation, causing the working fluid to accumulate at the bottom of the heat exchanger, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D1/22B01D1/00B01D1/30F01D25/18
CPCB01D1/0082B01D1/22B01D1/30F01D25/18
Inventor 葛建民郑洪财马新军
Owner 山东科灵节能装备股份有限公司
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