Natural gas liquefaction method and system combined with distributed energy

A distributed energy and natural gas technology, which is applied in the field of natural gas liquefaction methods and systems, can solve the problems of low energy utilization efficiency and achieve the effects of improving energy utilization efficiency, simple process flow, and low operating costs

Active Publication Date: 2019-06-07
CHENGDU SEPMEM SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But simply using the energy provided by the power generation device or gas turbine device to drive the electrical equipment or dynamic equipment of the liquefaction device, the overall energy utilization efficiency is low

Method used

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  • Natural gas liquefaction method and system combined with distributed energy
  • Natural gas liquefaction method and system combined with distributed energy
  • Natural gas liquefaction method and system combined with distributed energy

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Embodiment Construction

[0022] The present invention will be described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.

[0023] See attached figure 1 , the embodiment of the present invention provides a natural gas liquefaction system 100 combined with distributed energy, which mainly includes a gas generator 110 , a refrigeration unit 120 and a natural gas liquefaction device 130 .

[0024] The gas generator 110 is a device for supplying power during the natural gas liquefaction process. The gas generator 110 is mainly divided into an internal combustion generator and a gas turbine generator. Both the internal combustion generator and the gas turbine generator will generate a large amount of waste heat during the power generation process . Among them, when the internal combustion generator generates power, the waste heat generated exists in the high-temperature waste flue gas generated and the high-temperature cylinder jacket water...

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Abstract

The invention relates to a natural gas liquefaction method combined with distributed energy, supplying waste heat generated by the gas generator to a refrigeration unit; using the refrigeration unit to cool the circulating refrigerant and / or The raw material gas is pre-cooled; the raw material gas and the circulating refrigerant are heat-exchanged in the natural gas liquefaction device to obtain liquefied natural gas. The present invention also relates to a natural gas liquefaction system combined with distributed energy, including a gas generator, a refrigeration unit, and a natural gas liquefaction device, the power supply line of the gas generator is connected to the natural gas liquefaction device, and the gas generator passes through The pipeline is connected to the refrigerating unit, and the refrigerating unit is connected to the natural gas liquefaction device. The natural gas liquefaction method and system well combine distributed energy with a natural gas liquefaction device, improve energy utilization efficiency, and achieve the purpose of energy saving and emission reduction.

Description

technical field [0001] The invention relates to the technical field of natural gas liquefaction, in particular to a natural gas liquefaction method and system combined with distributed energy. Background technique [0002] Distributed energy is an efficient energy utilization method, which can realize combined cooling, heating and power supply, and its conventional energy utilization efficiency can reach more than 70%. The distribution of power grid resources in my country is uneven. The national policy encourages the construction of distributed energy devices in power-deficient areas, which is conducive to optimizing the energy structure and improving the overall energy utilization efficiency, thereby realizing the environmental benefits of energy conservation and emission reduction. At present, distributed energy is mainly used in airports, hospitals, shopping malls, stations, hotels and other fields. [0003] The construction of natural gas liquefaction devices is also i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25J1/02
CPCF25J1/0242F25J2210/60F25J2270/906F25J1/0022F25J1/0284F25J1/0297F25J2240/80F25J1/0227F25J2230/30F25J2230/22F25J2205/50F25J2205/70F25J1/0052
Inventor 张惊涛母斌
Owner CHENGDU SEPMEM SCI & TECH
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