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Liquefied natural gas pre-refrigeration agent compressing and skid-mounted packaging module

A technology of liquefied natural gas and pre-refrigerant, applied in the directions of liquefaction, refrigeration and liquefaction, cold treatment separation, etc., can solve the problems of troublesome cleaning, burnout equipment, slow heat dissipation, etc. The effect of the service life

Inactive Publication Date: 2017-07-11
延安国能科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure of the existing pre-refrigerant supply system is scattered, and the skid-mounted module is located outdoors, and its cleaning is troublesome. If it is placed indoors, there will be more internal heat, slow heat dissipation, and poor ventilation; the equipment in the skid-mounted module , in long-term use and operation, there will be heat generated, and the heat cannot be dissipated in time, which not only increases the indoor temperature, but also affects the use of the equipment, and may even burn out the equipment due to excessive temperature

Method used

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  • Liquefied natural gas pre-refrigeration agent compressing and skid-mounted packaging module
  • Liquefied natural gas pre-refrigeration agent compressing and skid-mounted packaging module
  • Liquefied natural gas pre-refrigeration agent compressing and skid-mounted packaging module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Refer to attached figure 1 As shown, a pre-refrigerant compression skid-mounted module for liquefied natural gas provided by the present invention includes a cavity housing 1, and the housing 1 is provided with a pre-refrigerant compressor 2, a compressor lubrication system 3, a lubrication The oil cooling heat exchanger 4 and the compressor lubricating oil fine separator 6; also includes a pre-refrigerant return pipe 7, the pre-refrigerant flows into the pre-refrigerant inlet of the pre-refrigerant compressor 2 after passing through the pre-refrigerant return pipe 7, After being processed, it flows out from the pre-refrigerant outlet of the pre-refrigerant compressor 2, flows into the lubricating oil cooling heat exchanger 4, and flows into the pre-refrigerant storage tank 8 after being cooled.

[0033] Wherein, the function of the pre-refrigerant compressor 2 is to compress and lower the temperature of the pre-refrigerant returned from the pre-cooling module after pre...

Embodiment 2

[0042] On the basis of Embodiment 1, the purpose of this embodiment is to remove the granular impurities in the housing 1, keep the housing 1 clean, and prevent impurities from affecting the operation of natural gas liquefaction or other equipment.

[0043] On the basis of embodiment 1, with reference to the attached image 3 As shown, a pair of columnar containers 14 for removing particulate matter impurities that are kept at an angle of 90 degrees to each other are arranged in the housing 1;

[0044] Further, refer to the attached Figure 7 As shown, there are more than two through-holes 15 for feeding airflow on the columnar container 14 for removing particulate impurities. Through the through hole 15, the air flow in the cylindrical container 14 for removing particulate impurities is accelerated.

[0045] Refer to attached Figure 7 As shown, further, in order to facilitate dust removal and absorption of impurities, the columnar container 14 for removing particulate imp...

Embodiment 3

[0049] In order to ensure the cleanliness and purity of the pre-refrigerant entering the pre-refrigerant storage tank 8, in this embodiment, a pre-refrigerant filter is provided between the lubricating oil cooling heat exchanger 4 and the pre-refrigerant storage tank 8 device 5.

[0050] Further, in order to avoid the impact of the compressed air pulse in the pre-refrigerant compressor 2, the impact of the unstable air flow on the lubricating oil cooling heat exchanger 4 is reduced, and the service life of the lubricating oil cooling heat exchanger 4 is improved. The refrigerant compressor 2 and the lubricating oil cooling heat exchanger 4 are connected through a pre-refrigerant elbow 18 and a lubricating oil elbow 19 .

[0051] In this embodiment, the curved pipe is set, and compared with the straight pipe connection, the buffer is added, so that whether it is pre-refrigerant or lubricating oil, it will flow into the lubricating oil cooling heat exchanger 4 after buffering, a...

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Abstract

The invention discloses a liquefied natural gas pre-refrigeration agent compressing and skid-mounted packaging module which comprises a shell with a hollow cavity, wherein a pre-refrigeration agent compressor, a compressor lubricating system, a lubricating oil temperature reduction heat exchanger and a compressor lubricating oil fine separator are arranged in the shell; the shell comprises a left wall plate, a right wall plate, a main wall plate and a back wall plate; containers used for supplying air are arranged on the outer wall of each of the left wall plate, the right wall plate and the main wall plate; an air feeder communicated with the cavity of each of the containers is arranged on one side wall of each of the containers; two or more truncated-cone-shaped cavities are formed in the other side wall of each of the containers; a truncated-cone-shaped cavity channel corresponding to the truncated-cone-shaped cavities is formed in each of the truncated-cone-shaped cavities in a penetrating manner from one end to the other end; two or more truncated-cone-shaped run-through cavity holes opposite to one end, shorter in the vertical span, of each of the truncated-cone-shaped cavities are formed in each of the left wall plate and the right wall plate. According to the liquefied natural gas pre-refrigeration agent compressing and skid-mounted packaging module, the skid-mounted packaging module can be cooled by ventilation and refrigerated effectively.

Description

technical field [0001] The invention belongs to the technical field of pre-refrigerant compression skid installation, and in particular relates to a pre-refrigerant compression skid installation module of liquefied natural gas. Background technique [0002] Liquefied Natural Gas (LNG), whose main component is methane, is recognized as the cleanest energy on earth. Colorless, odorless, non-toxic and non-corrosive, its volume is about 1 / 625 of the volume of the same volume of gaseous natural gas, and the weight of liquefied natural gas is only about 45% of the same volume of water. The manufacturing process is to first purify the natural gas produced in the gas field, and then transport it by liquefied natural gas ship after a series of ultra-low temperature liquefaction. The burning of liquefied natural gas causes very little air pollution and releases a lot of heat, so liquefied natural gas is a relatively advanced energy source. [0003] In the existing technologies, the ...

Claims

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Application Information

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IPC IPC(8): F25J1/02F17C5/02
CPCF17C5/02F25J1/0237F25J2210/62
Inventor 杨惠
Owner 延安国能科技股份有限公司
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