Skid-mounted natural gas liquefaction device and technology

A liquefaction device and natural gas technology, which is applied in the field of natural gas liquefaction, can solve the problems of high energy consumption and heat waste, and achieve the effect of reducing refrigeration energy consumption, reducing energy consumption, and reducing energy consumption

Pending Publication Date: 2019-10-22
山东巨创燃气设备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a skid-mounted natural gas liquefaction device and process to solve the technical problems of high energy consumption and heat waste in the existing liquefaction process

Method used

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  • Skid-mounted natural gas liquefaction device and technology

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Embodiment Construction

[0030] The specific implementation manner of the present invention will be further described in detail below with reference to the drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0031] Such as figure 1 As shown, the embodiment of the present invention provides a skid-mounted natural gas liquefaction device, including a generator set, a natural gas heating and decompression unit, a natural gas decarbonization unit, a natural gas drying unit and a refrigeration unit, and the natural gas passes through the natural gas heating and decompression unit, the natural gas The decarbonization unit, natural gas drying unit and refrigeration unit are processed to form liquefied natural gas, and the liquefied natural gas is transported to the liquefied natural gas storage tank through the cold box for storage. The natural gas heating and decompression unit includes a first he...

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Abstract

The invention relates to the technical field of natural gas liquefaction, and discloses a skid-mounted natural gas liquefaction device and technology. A waste heat recycling unit is arranged, an inletend of the waste heat recycling unit is communicated with a smoke discharge port of a smoke discharge system of a power generator unit, heat exchange mediums are utilized for recycling heat of discharged smoke of the smoke discharge system of the power generator unit in a way of heat exchange, the high-temperature heat exchange mediums absorbing the heat of the discharged smoke heat natural gas in the natural gas liquefaction technology in a way of heat exchange, thus the energy consumption for the skid-mounted natural gas liquefaction technology is greatly lowered, and the energy consumptionis greatly reduced. Meanwhile, the temperatures of the heat exchange mediums conveyed to different technologies are different, and thus different technology requirements are met. Besides, part of thehigh-temperature heat exchange mediums obtained after heat exchange with the discharged smoke are conveyed to a precooling unit, so that the refrigeration energy consumption of a refrigeration unit is lowered, and the energy consumption of the whole technology is further lowered.

Description

technical field [0001] The invention relates to the technical field of natural gas liquefaction, in particular to a skid-mounted natural gas liquefaction device and a process. Background technique [0002] In recent years, with the intensified development of remote gas wells, natural gas skid-mounted plants have developed rapidly. The traditional skid-mounted liquefaction process is as follows: natural gas is transformed into LNG products through heating and decompression, decarbonization, dehydration, and LNG liquefaction, and MRC refrigeration cycle or nitrogen expansion cycle is used for refrigeration. Electric heaters are used for heating and decompression of natural gas, decarbonization and dehydration, or natural gas is burned for heating. The refrigeration cycle is driven by electricity, which consumes a lot of energy. [0003] On the other hand, the skid-mounted factory is basically in a relatively remote location, and the electricity is generated independently by a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25J1/02F23J15/06
CPCF25J1/0221F25J1/0242F23J15/06F25J2210/62Y02E20/30
Inventor 姚占强武竞陈飞王晨晨刘义
Owner 山东巨创燃气设备有限公司
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