Seawater temperature difference power generation circulating system based on single screw expander

A circulation system and temperature difference power generation technology, applied in ocean energy power generation, solar thermal power generation, machines/engines, etc., can solve problems such as energy shortages, restrictions on island development, construction and utilization, and difficulties in fresh water supply, achieving simple structure and vibration Small, compactness-improving effect

Pending Publication Date: 2019-12-20
BEIJING UNIV OF TECH
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  • Claims
  • Application Information

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Problems solved by technology

However, most islands suffer from energy shortages and fresh water supply difficulties, which seriously restrict the development, construction and utilization of islands.

Method used

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  • Seawater temperature difference power generation circulating system based on single screw expander

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Embodiment 1

[0023] Such as figure 1 As shown in the structural diagram, the system includes a single screw expander 1, a generator 2, an ejector 3, a condenser 4, a cold sea water pump 5, a working medium pump 6, a preheater 7, a regenerator 8, and an evaporator 9 , warm sea water pump 10, separator 11, etc.

[0024] Connect warm sea water pump 10, evaporator 9, and preheater 7 sequentially through warm sea water pipeline; , preheater 7, regenerator 8 and evaporator 9 are connected in sequence. Connect the separator 11, the regenerator 8 and the ejector 3 sequentially through the working medium solution pipeline; connect the condenser 4 and the cold seawater pump 5 through the cold seawater pipeline; connect the single-screw expander through the coupling 1 is connected to generator 2.

[0025] Warm sea water passes through the warm sea water pump 10 into a high-pressure liquid, flows into the evaporator 9 to heat the working fluid, then flows into the preheater 7, preheats the working ...

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Abstract

The invention discloses a seawater temperature difference power generation circulating system based on a single screw expander, and belongs to the technical field of marine energy utilization. The system mainly comprises a warm seawater pump, an evaporator, a preheater, a regenerator, a separator, the single screw expander, a generator, an ejector, a condenser, a working medium pump and a cold seawater pump. According to the system, a low-boiling-point working medium is adopted, surface temperature seawater is used as a heat source for heating the low-boiling-point working medium, the single-screw expander is pushed to do work, the generator is driven to generate electricity, deep cold seawater is used as a cold source for cooling the working medium, and continuous power generation is completed. Due to the fact that the single-screw expander which is simple in structure, small in vibration and low in noise is adopted, the compactness of the whole seawater temperature difference power generation system structure is improved, and in addition, the economy is improved.

Description

technical field [0001] The invention relates to a seawater temperature difference power generation cycle system based on a single-screw expander, and belongs to the technical field of marine energy utilization. Background technique [0002] With the increasing energy shortage and environmental pollution, the development of clean energy power generation technology has become an important part of promoting the sustainable and healthy development of my country's economy. There are a large number of ocean energy resources in the ocean. According to the energy policy report of international organizations, the reserve of ocean temperature difference energy is very considerable, with a theoretical value of about 4×10 10 kW, the actual developable capacity is about 1×10 8 kW, if the ocean temperature difference energy can be converted into electric energy and other energy for human use, it can effectively alleviate various energy problems and environmental problems faced. [0003]...

Claims

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Application Information

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IPC IPC(8): F03G7/05F03G6/00F01C13/00
CPCF03G7/05F03G6/00F01C13/00Y02E10/46Y02E10/30
Inventor 智瑞平吴玉庭刘致君雷标张灿灿马丹丹
Owner BEIJING UNIV OF TECH
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