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Lubrication and cooling system of low-temperature thermal power generation expander

A technology of cooling system and expander, which is applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve problems such as complex structure, leakage of power generation medium, and many operating problems, so as to simplify the lubrication and cooling system, eliminate economic losses, and save energy. The effect of equipment investment

Inactive Publication Date: 2014-10-22
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This traditional lubricating and cooling method has a complex structure and many operational problems, which can easily cause seal leakage, resulting in leakage of the power generation medium to the oil tank, resulting in failure of the overall equipment operation

Method used

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  • Lubrication and cooling system of low-temperature thermal power generation expander
  • Lubrication and cooling system of low-temperature thermal power generation expander
  • Lubrication and cooling system of low-temperature thermal power generation expander

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Embodiment Construction

[0025] The lubricating and cooling system of the low-temperature thermal power generation expander of the present invention will be described in detail below in conjunction with the embodiments and the accompanying drawings.

[0026] The lubrication and cooling system of the low-temperature thermal power generation expander of the present invention includes a synchronous generator 8 and a twin-screw expander 7 connected to the synchronous generator 8 for driving the synchronous generator 8, and is also provided with a flooded evaporator 3 , wherein, the heat source passage inlet a of the flooded evaporator 3 is connected to the low-temperature heat source 1 through a pipeline, the heat source passage outlet b of the flooded evaporator 3 is connected to the low-temperature heat source return pipe 9, and the flooded evaporator 3 The inlet c of the oil-mixed power generation medium is connected to the oil-mixed power generation medium 2 through a medium pipeline, and the outlet 6 ...

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Abstract

The invention discloses a lubrication and cooling system of a low-temperature thermal power generation expander. The lubrication and cooling system comprises a synchronous generator, a double-screw expander connected to the synchronous generator and used for driving the synchronous generator, and a flooded evaporator. An inlet of a heat source channel of the flooded evaporator is connected to a low-temperature heat source by a pipe. An outlet of the heat source channel of the flooded evaporator is connected to a low-temperature heat source return pipe. A mixed oil power generation medium inlet of the flooded evaporator is connected to a mixed oil power generation medium by a medium pipe. A heat exchange-produced saturated gas power generation medium outlet of the flooded evaporator is connected to a power generation medium inlet of the double-screw expander by a pipe. The flooded evaporator is provided with a rich lubricating oil outlet for discharging rich lubricating oil separated from the mixed oil power generation medium. The rich lubricating oil outlet is connected to a lubricating oil inlet of the double-screw expander by a pipe and is used for lubricating a bearing of the double-screw expander. The lubrication and cooling system can greatly simplify the original screw machine lubrication and cooling system, save an equipment investment and improve low-temperature power generator operation stability.

Description

technical field [0001] The invention relates to a low-temperature thermal power generation device. In particular, it relates to a lubricating and cooling system for a low-temperature thermal power expander used for low-temperature thermal power generation at 60°C and above. Background technique [0002] In the current development of low-temperature thermal power generation technology, the double-cycle technology of organic working fluid has been paid attention to because it is more suitable for low-temperature heat sources. [0003] The current low-temperature power generation technologies of the organic refrigerant Rankine cycle, such as "low-temperature power generation method and device (CN1837582)", "sintering ring cold waste System (CN101216020)", "Self-cascading solar low-temperature Rankine cycle system (CN101344075)", "Rankine cycle device having multiple turbo-generators (US.PAT.7665304)", "Method and apparatus for decreasing marine vessel power plant Exhaust temp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01C21/04F01C21/06
Inventor 张于峰
Owner TIANJIN UNIV
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