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Novel distributed energy system combining Rankine cycle and compressed gas energy storage technology and method of novel distributed energy system

A distributed energy and Rankine cycle technology, applied in the direction of charging system, greenhouse gas reduction, combustion technology mitigation, etc., can solve problems such as imperfection, peak shaving and valley filling technology, low-grade waste heat that cannot be utilized, etc.

Pending Publication Date: 2019-05-21
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing distributed energy utilization system is not perfect, and there are some problems such as unutilized low-grade waste heat, large energy loss, and insufficient peak-shaving and valley-filling technology.

Method used

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  • Novel distributed energy system combining Rankine cycle and compressed gas energy storage technology and method of novel distributed energy system
  • Novel distributed energy system combining Rankine cycle and compressed gas energy storage technology and method of novel distributed energy system

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Embodiment 1

[0042] see figure 1 , a new type of distributed energy system combining Rankine cycle and compressed gas energy storage technology, characterized in that:

[0043] Build a new type of distributed energy system including gas turbines, Rankine cycle generators, absorption refrigeration units, heat exchangers, water removal and drying devices, and compressed gas energy storage devices.

[0044] The gas turbine is selected from large and medium gas turbines and / or small gas turbines. Gas supply is natural gas.

[0045] The gas turbine drives the generator to generate electricity, which is connected to the mains grid.

[0046] The compressed air in the combustion chamber of the gas turbine comes from the compressor of the gas turbine and / or the compressed gas energy storage device.

[0047] The high-temperature flue gas discharged from the gas turbine enters the Rankine cycle generator set.

[0048] The Rankine cycle generating set drives the generator to generate electricity t...

Embodiment 2

[0060] This embodiment is based on the system described in Embodiment 1, that is, the construction includes a small gas turbine, an organic Rankine cycle generator set, an absorption refrigeration unit, a partition heat exchanger, a cooling separation method for water removal and drying device, and an advanced adiabatic compressed gas energy storage device system:

[0061] Based on the above system, this embodiment discloses a new distributed energy utilization method combining Rankine cycle and compressed gas energy storage technology, including the following cycle process:

[0062]1) Utilization of natural gas and its alternative fuels by small gas turbines:

[0063] For the initial run, natural gas is fed to the small gas turbine. Electric loads are generated for use after being connected to the grid. The high-temperature flue gas produced is passed into the organic Rankine cycle generator set.

[0064] The compressed gas in the gas turbine is sent to the combustion cham...

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Abstract

The invention provides a novel distributed energy system combining a Rankine cycle and compressed gas energy storage technology and a method of the novel distributed energy system. Firstly, the noveldistributed energy system sufficiently utilizes low-grade smoke, gas and waste heat, constantly takes advantage of multistage waste heat, reduces heat pollution and improves the energy utilization efficiency of the system. Secondly, smoke and gas produced by the entire energy system is compressed by a compressed gas energy storage device, the stored high pressure gas is released at an electricityconsumption peak, electricity is generated for the second time, a cyclic utilization of materials is realized, and environment pollution is avoided. Thirdly, a heat exchanger enables the smoke, gas and waste heat to be used more sufficiently through heat exchanging, the produced heat load is provided for utilization directly, and the economic benefit is improved. Fourthly, the grid-connected electric supply generated through a gas turbine and an organic Rankine cycle generator unit can be used directly, maneuverability is adequate, and the economic benefit is improved. Fifthly, the cooling load generated through an absorption-type refrigeration unit can be used directly for cooling and the like, and the system energy utilizing efficiency is greatly improved.

Description

technical field [0001] The invention relates to the fields of energy utilization technology and energy storage. Background technique [0002] The existing distributed energy utilization system is not perfect, and there are some problems such as unutilized low-grade waste heat, large energy loss, and insufficient peak-shaving and valley-filling technology. Contents of the invention [0003] The purpose of the present invention is to provide a novel distributed energy system combining Rankine cycle and compressed gas energy storage technology, characterized in that: [0004] Build a new type of distributed energy system including gas turbines, Rankine cycle generators, absorption refrigeration units, heat exchangers, water removal and drying devices, and compressed gas energy storage devices. [0005] The gas turbine drives the generator to generate electricity, which is connected to the mains grid. [0006] The compressed air in the combustion chamber of the gas turbine c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B27/02F28D21/00F23J15/02F23J15/06F01K23/10F02C6/00F02C7/04F04B35/04F04B41/02
CPCY02A30/274Y02E20/30Y02E60/16
Inventor 周永利谢尹田廷泉汪晓燕韦洲崟种法政常秋翔杨伟科李猛孙宽
Owner CHONGQING UNIV
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